22961290 has 16 divisors (see below), whose sum is σ = 45087840. Its totient is φ = 8349520.

The previous prime is 22961273. The next prime is 22961293. The reversal of 22961290 is 9216922.

It is not an unprimeable number, because it can be changed into a prime (22961293) 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, 104260 + ... + 104479.

It is an arithmetic number, because the mean of its divisors is an integer number (2817990).

Almost surely, 2^22961290 is an apocalyptic number.

22961290 is a deficient number, since it is larger than the sum of its proper divisors (22126550).

22961290 is a wasteful number, since it uses less digits than its factorization.

22961290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208757.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 22961290 is about 4791.7940272929. The cubic root of 22961290 is about 284.2270633352.

The spelling of 22961290 in words is "twenty-two million, nine hundred sixty-one thousand, two hundred ninety".