23271572 has 24 divisors (see below), whose sum is σ = 44611560. Its totient is φ = 10572800.

The previous prime is 23271571. The next prime is 23271587. The reversal of 23271572 is 27517232.

It can be written as a sum of positive squares in 4 ways, for example, as 6739216 + 16532356 = 2596^2 + 4066^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23271571) 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, 3929 + ... + 7872.

It is an arithmetic number, because the mean of its divisors is an integer number (1858815).

Almost surely, 2^23271572 is an apocalyptic number.

It is an amenable number.

23271572 is a deficient number, since it is larger than the sum of its proper divisors (21339988).

23271572 is a wasteful number, since it uses less digits than its factorization.

23271572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11851 (or 11849 counting only the distinct ones).

The product of its digits is 5880, while the sum is 29.

The square root of 23271572 is about 4824.0617740655. The cubic root of 23271572 is about 285.5016178855.

The spelling of 23271572 in words is "twenty-three million, two hundred seventy-one thousand, five hundred seventy-two".