23940072 has 48 divisors (see below), whose sum is σ = 69827940. Its totient is φ = 7365888.

The previous prime is 23940071. The next prime is 23940083. The reversal of 23940072 is 27004932.

It can be written as a sum of positive squares in 2 ways, for example, as 18714276 + 5225796 = 4326^2 + 2286^2 .

It is not an unprimeable number, because it can be changed into a prime (23940071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11853 + ... + 13724.

Almost surely, 2^23940072 is an apocalyptic number.

It is an amenable number.

23940072 is an abundant number, since it is smaller than the sum of its proper divisors (45887868).

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

23940072 is a wasteful number, since it uses less digits than its factorization.

23940072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25602 (or 25595 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 23940072 is about 4892.8592867566. The cubic root of 23940072 is about 288.2096274734.

The spelling of 23940072 in words is "twenty-three million, nine hundred forty thousand, seventy-two".