10403032440 has 64 divisors (see below), whose sum is σ = 31433673600. Its totient is φ = 2754179712.

The previous prime is 10403032417. The next prime is 10403032477. The reversal of 10403032440 is 4423030401.

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, 295162 + ... + 328521.

It is an arithmetic number, because the mean of its divisors is an integer number (491151150).

Almost surely, 2^10403032440 is an apocalyptic number.

10403032440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10403032440 is an abundant number, since it is smaller than the sum of its proper divisors (21030641160).

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

10403032440 is a wasteful number, since it uses less digits than its factorization.

10403032440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623836 (or 623832 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 10403032440 its reverse (4423030401), we get a palindrome (14826062841).

The spelling of 10403032440 in words is "ten billion, four hundred three million, thirty-two thousand, four hundred forty".