23259978 has 48 divisors (see below), whose sum is σ = 60989760. Its totient is φ = 6254208.

The previous prime is 23259953. The next prime is 23259979. The reversal of 23259978 is 87995232.

It is not an unprimeable number, because it can be changed into a prime (23259979) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3288 + ... + 7571.

It is an arithmetic number, because the mean of its divisors is an integer number (1270620).

Almost surely, 2^23259978 is an apocalyptic number.

23259978 is an abundant number, since it is smaller than the sum of its proper divisors (37729782).

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

23259978 is a wasteful number, since it uses less digits than its factorization.

23259978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10891 (or 10888 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 23259978 is about 4822.8599399112. The cubic root of 23259978 is about 285.4541972871.

The spelling of 23259978 in words is "twenty-three million, two hundred fifty-nine thousand, nine hundred seventy-eight".