10402112440 has 32 divisors (see below), whose sum is σ = 23535522000. Its totient is φ = 4137597184.

The previous prime is 10402112417. The next prime is 10402112459. The reversal of 10402112440 is 4421120401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719245 + ... + 733564.

Almost surely, 2^10402112440 is an apocalyptic number.

10402112440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10402112440 is an abundant number, since it is smaller than the sum of its proper divisors (13133409560).

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

10402112440 is a wasteful number, since it uses less digits than its factorization.

10402112440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452999 (or 1452995 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 10402112440 its reverse (4421120401), we get a palindrome (14823232841).

The spelling of 10402112440 in words is "ten billion, four hundred two million, one hundred twelve thousand, four hundred forty".