22474513 has 4 divisors (see below), whose sum is σ = 22505908. Its totient is φ = 22443120.

The previous prime is 22474471. The next prime is 22474523. The reversal of 22474513 is 31547422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22212369 + 262144 = 4713^2 + 512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22474513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22474523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14598 + ... + 16063.

It is an arithmetic number, because the mean of its divisors is an integer number (5626477).

Almost surely, 2^22474513 is an apocalyptic number.

It is an amenable number.

22474513 is a deficient number, since it is larger than the sum of its proper divisors (31395).

22474513 is an equidigital number, since it uses as much as digits as its factorization.

22474513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31394.

The product of its digits is 6720, while the sum is 28.

The square root of 22474513 is about 4740.7291633250. The cubic root of 22474513 is about 282.2041720108.

The spelling of 22474513 in words is "twenty-two million, four hundred seventy-four thousand, five hundred thirteen".