22474737 has 6 divisors (see below), whose sum is σ = 32463522. Its totient is φ = 14983152.

The previous prime is 22474717. The next prime is 22474759. The reversal of 22474737 is 73747422.

It can be written as a sum of positive squares in only one way, i.e., 21013056 + 1461681 = 4584^2 + 1209^2 .

It is not a de Polignac number, because 22474737 - 2²⁰ = 21426161 is a prime.

It is a super-2 number, since 2×22474737² = 1010227606438338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22474717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1248588 + ... + 1248605.

It is an arithmetic number, because the mean of its divisors is an integer number (5410587).

Almost surely, 2^22474737 is an apocalyptic number.

It is an amenable number.

22474737 is a deficient number, since it is larger than the sum of its proper divisors (9988785).

22474737 is a wasteful number, since it uses less digits than its factorization.

22474737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497199 (or 2497196 counting only the distinct ones).

The product of its digits is 65856, while the sum is 36.

The square root of 22474737 is about 4740.7527883238. The cubic root of 22474737 is about 282.2051095695.

The spelling of 22474737 in words is "twenty-two million, four hundred seventy-four thousand, seven hundred thirty-seven".