102720924 has 36 divisors (see below), whose sum is σ = 260638560. Its totient is φ = 34110720.

The previous prime is 102720913. The next prime is 102720941. The reversal of 102720924 is 429027201.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4492 + ... + 15020.

It is an arithmetic number, because the mean of its divisors is an integer number (7239960).

Almost surely, 2^102720924 is an apocalyptic number.

It is an amenable number.

102720924 is an abundant number, since it is smaller than the sum of its proper divisors (157917636).

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

102720924 is a wasteful number, since it uses less digits than its factorization.

102720924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10810 (or 10805 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 102720924 is about 10135.1331515674. The cubic root of 102720924 is about 468.3310718966.

The spelling of 102720924 in words is "one hundred two million, seven hundred twenty thousand, nine hundred twenty-four".