10212657240 has 64 divisors (see below), whose sum is σ = 31095279360. Its totient is φ = 2682725760.

The previous prime is 10212657223. The next prime is 10212657269. The reversal of 10212657240 is 4275621201.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 10212657198 and 10212657207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627076 + ... + 643155.

It is an arithmetic number, because the mean of its divisors is an integer number (485863740).

Almost surely, 2^10212657240 is an apocalyptic number.

10212657240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212657240 is an abundant number, since it is smaller than the sum of its proper divisors (20882622120).

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

10212657240 is a wasteful number, since it uses less digits than its factorization.

10212657240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270312 (or 1270308 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 10212657240 in words is "ten billion, two hundred twelve million, six hundred fifty-seven thousand, two hundred forty".