23920472 has 8 divisors (see below), whose sum is σ = 44850900. Its totient is φ = 11960232.

The previous prime is 23920471. The next prime is 23920493. The reversal of 23920472 is 27402932.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23920471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1495022 + ... + 1495037.

Almost surely, 2^23920472 is an apocalyptic number.

It is an amenable number.

23920472 is a deficient number, since it is larger than the sum of its proper divisors (20930428).

23920472 is a wasteful number, since it uses less digits than its factorization.

23920472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990065 (or 2990061 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 23920472 is about 4890.8559578053. The cubic root of 23920472 is about 288.1309525358.

The spelling of 23920472 in words is "twenty-three million, nine hundred twenty thousand, four hundred seventy-two".