22971429 has 12 divisors (see below), whose sum is σ = 35733516. Its totient is φ = 14136192.

The previous prime is 22971407. The next prime is 22971449. The reversal of 22971429 is 92417922.

22971429 is a `hidden beast` number, since 229 + 7 + 1 + 429 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11902500 + 11068929 = 3450^2 + 3327^2 .

It is not a de Polignac number, because 22971429 - 2⁸ = 22971173 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22971393 and 22971402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22971449) 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, 98052 + ... + 98285.

It is an arithmetic number, because the mean of its divisors is an integer number (2977793).

Almost surely, 2^22971429 is an apocalyptic number.

It is an amenable number.

22971429 is a deficient number, since it is larger than the sum of its proper divisors (12762087).

22971429 is a wasteful number, since it uses less digits than its factorization.

22971429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196356 (or 196353 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 22971429 is about 4792.8518650173. The cubic root of 22971429 is about 284.2688924910.

The spelling of 22971429 in words is "twenty-two million, nine hundred seventy-one thousand, four hundred twenty-nine".