23391072 has 48 divisors (see below), whose sum is σ = 68226480. Its totient is φ = 7796736.

The previous prime is 23391061. The next prime is 23391079. The reversal of 23391072 is 27019332.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23391079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12673 + ... + 14400.

It is an arithmetic number, because the mean of its divisors is an integer number (1421385).

Almost surely, 2^23391072 is an apocalyptic number.

It is an amenable number.

23391072 is an abundant number, since it is smaller than the sum of its proper divisors (44835408).

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

23391072 is a wasteful number, since it uses less digits than its factorization.

23391072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27092 (or 27078 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 23391072 is about 4836.4317425143. The cubic root of 23391072 is about 285.9894693500.

The spelling of 23391072 in words is "twenty-three million, three hundred ninety-one thousand, seventy-two".