23916945 has 16 divisors (see below), whose sum is σ = 41211072. Its totient is φ = 11774400.

The previous prime is 23916931. The next prime is 23916979. The reversal of 23916945 is 54961932.

It is not a de Polignac number, because 23916945 - 2⁴ = 23916929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61131 + ... + 61520.

It is an arithmetic number, because the mean of its divisors is an integer number (2575692).

Almost surely, 2^23916945 is an apocalyptic number.

It is an amenable number.

23916945 is a deficient number, since it is larger than the sum of its proper divisors (17294127).

23916945 is a wasteful number, since it uses less digits than its factorization.

23916945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122672.

The product of its digits is 58320, while the sum is 39.

The square root of 23916945 is about 4890.4953736815. The cubic root of 23916945 is about 288.1167904989.

The spelling of 23916945 in words is "twenty-three million, nine hundred sixteen thousand, nine hundred forty-five".