22952290 has 16 divisors (see below), whose sum is σ = 41451768. Its totient is φ = 9150336.

The previous prime is 22952263. The next prime is 22952291. The reversal of 22952290 is 9225922.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3530641 + 19421649 = 1879^2 + 4407^2 .

It is not an unprimeable number, because it can be changed into a prime (22952291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537 + ... + 6796.

Almost surely, 2^22952290 is an apocalyptic number.

22952290 is a deficient number, since it is larger than the sum of its proper divisors (18499478).

22952290 is a wasteful number, since it uses less digits than its factorization.

22952290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7653.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 22952290 is about 4790.8548297772. The cubic root of 22952290 is about 284.1899228861.

The spelling of 22952290 in words is "twenty-two million, nine hundred fifty-two thousand, two hundred ninety".