23540072 has 16 divisors (see below), whose sum is σ = 44194560. Its totient is φ = 11754864.

The previous prime is 23540071. The next prime is 23540089. The reversal of 23540072 is 27004532.

It is not an unprimeable number, because it can be changed into a prime (23540071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7343 + ... + 10049.

It is an arithmetic number, because the mean of its divisors is an integer number (2762160).

Almost surely, 2^23540072 is an apocalyptic number.

It is an amenable number.

23540072 is a deficient number, since it is larger than the sum of its proper divisors (20654488).

23540072 is a wasteful number, since it uses less digits than its factorization.

23540072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800 (or 3796 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 23540072 is about 4851.8112081984. The cubic root of 23540072 is about 286.5954308904.

The spelling of 23540072 in words is "twenty-three million, five hundred forty thousand, seventy-two".