102638560 has 24 divisors (see below), whose sum is σ = 242483976. Its totient is φ = 41055360.

The previous prime is 102638531. The next prime is 102638561. The reversal of 102638560 is 65836201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102638561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320586 + ... + 320905.

It is an arithmetic number, because the mean of its divisors is an integer number (10103499).

Almost surely, 2^102638560 is an apocalyptic number.

102638560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102638560 is an abundant number, since it is smaller than the sum of its proper divisors (139845416).

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

102638560 is an equidigital number, since it uses as much as digits as its factorization.

102638560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641506 (or 641498 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 102638560 is about 10131.0690452686. The cubic root of 102638560 is about 468.2058655503.

The spelling of 102638560 in words is "one hundred two million, six hundred thirty-eight thousand, five hundred sixty".