18233970 has 32 divisors (see below), whose sum is σ = 44947008. Its totient is φ = 4730688.

The previous prime is 18233951. The next prime is 18234001. The reversal of 18233970 is 7933281.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7104 + ... + 9323.

It is an arithmetic number, because the mean of its divisors is an integer number (1404594).

Almost surely, 2^18233970 is an apocalyptic number.

18233970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18233970 is an abundant number, since it is smaller than the sum of its proper divisors (26713038).

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

18233970 is a wasteful number, since it uses less digits than its factorization.

18233970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16474.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 18233970 is about 4270.1252909019. The cubic root of 18233970 is about 263.2047637433.

The spelling of 18233970 in words is "eighteen million, two hundred thirty-three thousand, nine hundred seventy".