23056542 has 16 divisors (see below), whose sum is σ = 51236880. Its totient is φ = 7685496.

The previous prime is 23056531. The next prime is 23056543. The reversal of 23056542 is 24565032.

23056542 is a `hidden beast` number, since 2 + 3 + 0 + 5 + 654 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23056543) 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, 213433 + ... + 213540.

It is an arithmetic number, because the mean of its divisors is an integer number (3202305).

Almost surely, 2^23056542 is an apocalyptic number.

23056542 is an abundant number, since it is smaller than the sum of its proper divisors (28180338).

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

23056542 is a wasteful number, since it uses less digits than its factorization.

23056542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426984 (or 426978 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 23056542 is about 4801.7228158235. The cubic root of 23056542 is about 284.6195477543.

The spelling of 23056542 in words is "twenty-three million, fifty-six thousand, five hundred forty-two".