18275970 has 16 divisors (see below), whose sum is σ = 43862400. Its totient is φ = 4873584.

The previous prime is 18275963. The next prime is 18275977. The reversal of 18275970 is 7957281.

It is an interprime number because it is at equal distance from previous prime (18275963) and next prime (18275977).

It is a super-2 number, since 2×18275970² = 668022158881800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18275977) 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, 304570 + ... + 304629.

It is an arithmetic number, because the mean of its divisors is an integer number (2741400).

Almost surely, 2^18275970 is an apocalyptic number.

18275970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18275970 is an abundant number, since it is smaller than the sum of its proper divisors (25586430).

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

18275970 is a wasteful number, since it uses less digits than its factorization.

18275970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609209.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 18275970 is about 4275.0403506868. The cubic root of 18275970 is about 263.4066967877.

The spelling of 18275970 in words is "eighteen million, two hundred seventy-five thousand, nine hundred seventy".