22992649 has 4 divisors (see below), whose sum is σ = 23037136. Its totient is φ = 22948164.

The previous prime is 22992647. The next prime is 22992691. The reversal of 22992649 is 94629922.

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 22992649 - 2¹ = 22992647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22992647) 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, 21459 + ... + 22504.

It is an arithmetic number, because the mean of its divisors is an integer number (5759284).

Almost surely, 2^22992649 is an apocalyptic number.

It is an amenable number.

22992649 is a deficient number, since it is larger than the sum of its proper divisors (44487).

22992649 is an equidigital number, since it uses as much as digits as its factorization.

22992649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44486.

The product of its digits is 139968, while the sum is 43.

The square root of 22992649 is about 4795.0650673375. The cubic root of 22992649 is about 284.3563972696.

The spelling of 22992649 in words is "twenty-two million, nine hundred ninety-two thousand, six hundred forty-nine".