22730715 has 24 divisors (see below), whose sum is σ = 45029088. Its totient is φ = 10391040.

The previous prime is 22730711. The next prime is 22730731. The reversal of 22730715 is 51703722.

It is not a de Polignac number, because 22730715 - 2² = 22730711 is a prime.

It is a super-2 number, since 2×22730715² = 1033370808822450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22730711) 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 23 ways as a sum of consecutive naturals, for example, 35766 + ... + 36395.

It is an arithmetic number, because the mean of its divisors is an integer number (1876212).

Almost surely, 2^22730715 is an apocalyptic number.

22730715 is a deficient number, since it is larger than the sum of its proper divisors (22298373).

22730715 is a wasteful number, since it uses less digits than its factorization.

22730715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72179 (or 72176 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 22730715 is about 4767.6739611681. The cubic root of 22730715 is about 283.2724675101.

The spelling of 22730715 in words is "twenty-two million, seven hundred thirty thousand, seven hundred fifteen".