18906464 has 24 divisors (see below), whose sum is σ = 37612008. Its totient is φ = 9354240.

The previous prime is 18906457. The next prime is 18906467. The reversal of 18906464 is 46460981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18906467) 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, 59 + ... + 6149.

It is an arithmetic number, because the mean of its divisors is an integer number (1567167).

Almost surely, 2^18906464 is an apocalyptic number.

It is an amenable number.

18906464 is a deficient number, since it is larger than the sum of its proper divisors (18705544).

18906464 is an equidigital number, since it uses as much as digits as its factorization.

18906464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6198 (or 6190 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 18906464 is about 4348.1563909317. The cubic root of 18906464 is about 266.4015643179.

The spelling of 18906464 in words is "eighteen million, nine hundred six thousand, four hundred sixty-four".