22730515 has 8 divisors (see below), whose sum is σ = 27518688. Its totient is φ = 18023040.

The previous prime is 22730507. The next prime is 22730549. The reversal of 22730515 is 51503722.

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

It is not a de Polignac number, because 22730515 - 2³ = 22730507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22730515.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19551 + ... + 20680.

It is an arithmetic number, because the mean of its divisors is an integer number (3439836).

Almost surely, 2^22730515 is an apocalyptic number.

22730515 is a deficient number, since it is larger than the sum of its proper divisors (4788173).

22730515 is a wasteful number, since it uses less digits than its factorization.

22730515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40349.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 22730515 is about 4767.6529865333. The cubic root of 22730515 is about 283.2716367009.

The spelling of 22730515 in words is "twenty-two million, seven hundred thirty thousand, five hundred fifteen".