18709368 has 32 divisors (see below), whose sum is σ = 48284160. Its totient is φ = 6035040.

The previous prime is 18709363. The next prime is 18709387. The reversal of 18709368 is 86390781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18709363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11830 + ... + 13317.

It is an arithmetic number, because the mean of its divisors is an integer number (1508880).

Almost surely, 2^18709368 is an apocalyptic number.

It is an amenable number.

18709368 is an abundant number, since it is smaller than the sum of its proper divisors (29574792).

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

18709368 is a wasteful number, since it uses less digits than its factorization.

18709368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25187 (or 25183 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 18709368 is about 4325.4326951185. The cubic root of 18709368 is about 265.4726015400.

The spelling of 18709368 in words is "eighteen million, seven hundred nine thousand, three hundred sixty-eight".