23320618 has 16 divisors (see below), whose sum is σ = 36290304. Its totient is φ = 11227680.

The previous prime is 23320613. The next prime is 23320667. The reversal of 23320618 is 81602332.

It is a junction number, because it is equal to n+sod(n) for n = 23320592 and 23320601.

It is not an unprimeable number, because it can be changed into a prime (23320613) 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, 13246 + ... + 14902.

It is an arithmetic number, because the mean of its divisors is an integer number (2268144).

Almost surely, 2^23320618 is an apocalyptic number.

23320618 is a deficient number, since it is larger than the sum of its proper divisors (12969686).

23320618 is a wasteful number, since it uses less digits than its factorization.

23320618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 23320618 is about 4829.1425739980. The cubic root of 23320618 is about 285.7020467853.

The spelling of 23320618 in words is "twenty-three million, three hundred twenty thousand, six hundred eighteen".