1040440032 has 96 divisors (see below), whose sum is σ = 3092009760. Its totient is φ = 340254720.

The previous prime is 1040440021. The next prime is 1040440091. The reversal of 1040440032 is 2300440401.

1040440032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1040440032² = 2165030920376322048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1040439987 and 1040440014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34432 + ... + 57152.

It is an arithmetic number, because the mean of its divisors is an integer number (32208435).

Almost surely, 2^1040440032 is an apocalyptic number.

1040440032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1040440032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1546004880).

1040440032 is an abundant number, since it is smaller than the sum of its proper divisors (2051569728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1040440032 is a wasteful number, since it uses less digits than its factorization.

1040440032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22793 (or 22779 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1040440032 is about 32255.8526782350. The cubic root of 1040440032 is about 1013.3022755178.

Adding to 1040440032 its reverse (2300440401), we get a palindrome (3340880433).

The spelling of 1040440032 in words is "one billion, forty million, four hundred forty thousand, thirty-two".