1000440032 has 12 divisors (see below), whose sum is σ = 1969616376. Its totient is φ = 500220000.

The previous prime is 1000440017. The next prime is 1000440037. The reversal of 1000440032 is 2300440001.

It is a super-2 number, since 2×1000440032² = 2001760515256322048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1000439989 and 1000440016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000440037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15631844 + ... + 15631907.

It is an arithmetic number, because the mean of its divisors is an integer number (164134698).

Almost surely, 2^1000440032 is an apocalyptic number.

It is an amenable number.

1000440032 is a deficient number, since it is larger than the sum of its proper divisors (969176344).

1000440032 is an equidigital number, since it uses as much as digits as its factorization.

1000440032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31263761 (or 31263753 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1000440032 is about 31629.7333532864. The cubic root of 1000440032 is about 1000.1466558244.

Adding to 1000440032 its reverse (2300440001), we get a palindrome (3300880033).

The spelling of 1000440032 in words is "one billion, four hundred forty thousand, thirty-two".