10512240440 has 32 divisors (see below), whose sum is σ = 25471968480. Its totient is φ = 3881442432.

The previous prime is 10512240397. The next prime is 10512240443. The reversal of 10512240440 is 4404221501.

It is a super-2 number, since 2×10512240440² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10512240443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10107404 + ... + 10108443.

It is an arithmetic number, because the mean of its divisors is an integer number (795999015).

Almost surely, 2^10512240440 is an apocalyptic number.

10512240440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10512240440 is an abundant number, since it is smaller than the sum of its proper divisors (14959728040).

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

10512240440 is a wasteful number, since it uses less digits than its factorization.

10512240440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20215871 (or 20215867 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 10512240440 its reverse (4404221501), we get a palindrome (14916461941).

The spelling of 10512240440 in words is "ten billion, five hundred twelve million, two hundred forty thousand, four hundred forty".