22980813 has 4 divisors (see below), whose sum is σ = 30641088. Its totient is φ = 15320540.

The previous prime is 22980803. The next prime is 22980851. The reversal of 22980813 is 31808922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22980813 - 2⁵ = 22980781 is a prime.

It is a super-2 number, since 2×22980813² = 1056235532281938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22980803) 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, 3830133 + ... + 3830138.

It is an arithmetic number, because the mean of its divisors is an integer number (7660272).

Almost surely, 2^22980813 is an apocalyptic number.

It is an amenable number.

22980813 is a deficient number, since it is larger than the sum of its proper divisors (7660275).

22980813 is an equidigital number, since it uses as much as digits as its factorization.

22980813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7660274.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 22980813 is about 4793.8307229188. The cubic root of 22980813 is about 284.3075958752.

The spelling of 22980813 in words is "twenty-two million, nine hundred eighty thousand, eight hundred thirteen".