22971672 has 48 divisors (see below), whose sum is σ = 63903840. Its totient is φ = 7449408.

The previous prime is 22971671. The next prime is 22971721. The reversal of 22971672 is 27617922.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22971671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1648 + ... + 6975.

It is an arithmetic number, because the mean of its divisors is an integer number (1331330).

Almost surely, 2^22971672 is an apocalyptic number.

It is an amenable number.

22971672 is an abundant number, since it is smaller than the sum of its proper divisors (40932168).

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

22971672 is a wasteful number, since it uses less digits than its factorization.

22971672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8672 (or 8665 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 22971672 is about 4792.8772152017. The cubic root of 22971672 is about 284.2698948535.

It can be divided in two parts, 2297 and 1672, that added together give a square (3969 = 63²).

The spelling of 22971672 in words is "twenty-two million, nine hundred seventy-one thousand, six hundred seventy-two".