18654970 has 16 divisors (see below), whose sum is σ = 33758208. Its totient is φ = 7422160.

The previous prime is 18654929. The next prime is 18654971. The reversal of 18654970 is 7945681.

It is not an unprimeable number, because it can be changed into a prime (18654971) 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, 2974 + ... + 6793.

It is an arithmetic number, because the mean of its divisors is an integer number (2109888).

Almost surely, 2^18654970 is an apocalyptic number.

18654970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18654970 is a deficient number, since it is larger than the sum of its proper divisors (15103238).

18654970 is a wasteful number, since it uses less digits than its factorization.

18654970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9965.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 18654970 is about 4319.1399606866. The cubic root of 18654970 is about 265.2150621570.

The spelling of 18654970 in words is "eighteen million, six hundred fifty-four thousand, nine hundred seventy".