102634440 has 64 divisors (see below), whose sum is σ = 326021760. Its totient is φ = 25758720.

The previous prime is 102634387. The next prime is 102634463. The reversal of 102634440 is 44436201.

It is a super-2 number, since 2×102634440² = 21067656548227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 102634440.

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, 23116 + ... + 27195.

It is an arithmetic number, because the mean of its divisors is an integer number (5094090).

Almost surely, 2^102634440 is an apocalyptic number.

102634440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102634440 is an abundant number, since it is smaller than the sum of its proper divisors (223387320).

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

102634440 is a wasteful number, since it uses less digits than its factorization.

102634440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50342 (or 50338 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 102634440 is about 10130.8657083193. The cubic root of 102634440 is about 468.1996007379.

The spelling of 102634440 in words is "one hundred two million, six hundred thirty-four thousand, four hundred forty".