22971402 has 24 divisors (see below), whose sum is σ = 50240736. Its totient is φ = 7584936.

The previous prime is 22971373. The next prime is 22971407. The reversal of 22971402 is 20417922.

It is not an unprimeable number, because it can be changed into a prime (22971407) 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, 4038 + ... + 7889.

It is an arithmetic number, because the mean of its divisors is an integer number (2093364).

Almost surely, 2^22971402 is an apocalyptic number.

22971402 is an abundant number, since it is smaller than the sum of its proper divisors (27269334).

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

22971402 is a wasteful number, since it uses less digits than its factorization.

22971402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12042 (or 12039 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 22971402 is about 4792.8490483219. The cubic root of 22971402 is about 284.2687811169.

It can be divided in two parts, 229 and 71402, that added together give a triangular number (71631 = T₃₇₈).

The spelling of 22971402 in words is "twenty-two million, nine hundred seventy-one thousand, four hundred two".