22290893 has 4 divisors (see below), whose sum is σ = 23602140. Its totient is φ = 20979648.

The previous prime is 22290883. The next prime is 22290901. The reversal of 22290893 is 39809222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16540489 + 5750404 = 4067^2 + 2398^2 .

It is a cyclic number.

It is not a de Polignac number, because 22290893 - 2¹⁴ = 22274509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22290883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655598 + ... + 655631.

It is an arithmetic number, because the mean of its divisors is an integer number (5900535).

Almost surely, 2^22290893 is an apocalyptic number.

It is an amenable number.

22290893 is a deficient number, since it is larger than the sum of its proper divisors (1311247).

22290893 is a wasteful number, since it uses less digits than its factorization.

22290893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311246.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 22290893 is about 4721.3232255375. The cubic root of 22290893 is about 281.4335198623.

The spelling of 22290893 in words is "twenty-two million, two hundred ninety thousand, eight hundred ninety-three".