1040343444 has 72 divisors (see below), whose sum is σ = 3010757568. Its totient is φ = 296714880.

The previous prime is 1040343439. The next prime is 1040343457. The reversal of 1040343444 is 4443430401.

It is a super-2 number, since 2×1040343444² = 2164628962947562272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152139 + ... + 158829.

Almost surely, 2^1040343444 is an apocalyptic number.

1040343444 is a gapful number since it is divisible by the number (14) 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 1040343444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1505378784).

1040343444 is an abundant number, since it is smaller than the sum of its proper divisors (1970414124).

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

1040343444 is a wasteful number, since it uses less digits than its factorization.

1040343444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7325 (or 7320 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1040343444 is about 32254.3554268257. The cubic root of 1040343444 is about 1013.2709183144.

Adding to 1040343444 its reverse (4443430401), we get a palindrome (5483773845).

The spelling of 1040343444 in words is "one billion, forty million, three hundred forty-three thousand, four hundred forty-four".