23772428 has 6 divisors (see below), whose sum is σ = 41601756. Its totient is φ = 11886212.

The previous prime is 23772407. The next prime is 23772451. The reversal of 23772428 is 82427732.

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 as a sum of consecutive naturals, namely, 2971550 + ... + 2971557.

It is an arithmetic number, because the mean of its divisors is an integer number (6933626).

Almost surely, 2^23772428 is an apocalyptic number.

It is an amenable number.

23772428 is a deficient number, since it is larger than the sum of its proper divisors (17829328).

23772428 is a wasteful number, since it uses less digits than its factorization.

23772428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5943111 (or 5943109 counting only the distinct ones).

The product of its digits is 37632, while the sum is 35.

The square root of 23772428 is about 4875.6976936640. The cubic root of 23772428 is about 287.5353070690.

The spelling of 23772428 in words is "twenty-three million, seven hundred seventy-two thousand, four hundred twenty-eight".