23162728 has 16 divisors (see below), whose sum is σ = 44354880. Its totient is φ = 11334768.

The previous prime is 23162723. The next prime is 23162747. The reversal of 23162728 is 82726132.

It is a self number, because there is not a number n which added to its sum of digits gives 23162728.

It is not an unprimeable number, because it can be changed into a prime (23162723) 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 3 ways as a sum of consecutive naturals, for example, 30426 + ... + 31177.

It is an arithmetic number, because the mean of its divisors is an integer number (2772180).

Almost surely, 2^23162728 is an apocalyptic number.

It is an amenable number.

23162728 is a deficient number, since it is larger than the sum of its proper divisors (21192152).

23162728 is a wasteful number, since it uses less digits than its factorization.

23162728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61656 (or 61652 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 23162728 is about 4812.7671873881. The cubic root of 23162728 is about 285.0558134252.

The spelling of 23162728 in words is "twenty-three million, one hundred sixty-two thousand, seven hundred twenty-eight".