22724930 has 8 divisors (see below), whose sum is σ = 40904892. Its totient is φ = 9089968.

The previous prime is 22724929. The next prime is 22724939. The reversal of 22724930 is 3942722.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20784481 + 1940449 = 4559^2 + 1393^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22724893 and 22724902.

It is not an unprimeable number, because it can be changed into a prime (22724939) 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, 1136237 + ... + 1136256.

Almost surely, 2^22724930 is an apocalyptic number.

22724930 is a deficient number, since it is larger than the sum of its proper divisors (18179962).

22724930 is a wasteful number, since it uses less digits than its factorization.

22724930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272500.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 22724930 is about 4767.0672325865. The cubic root of 22724930 is about 283.2484343863.

The spelling of 22724930 in words is "twenty-two million, seven hundred twenty-four thousand, nine hundred thirty".