102489960 has 32 divisors (see below), whose sum is σ = 307470240. Its totient is φ = 27330624.

The previous prime is 102489953. The next prime is 102489979. The reversal of 102489960 is 69984201.

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, 426922 + ... + 427161.

It is an arithmetic number, because the mean of its divisors is an integer number (9608445).

Almost surely, 2^102489960 is an apocalyptic number.

102489960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102489960 is an abundant number, since it is smaller than the sum of its proper divisors (204980280).

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

102489960 is a wasteful number, since it uses less digits than its factorization.

102489960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854097 (or 854093 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 102489960 is about 10123.7325132581. The cubic root of 102489960 is about 467.9798004285.

The spelling of 102489960 in words is "one hundred two million, four hundred eighty-nine thousand, nine hundred sixty".