22315290 has 32 divisors (see below), whose sum is σ = 55886976. Its totient is φ = 5691840.

The previous prime is 22315289. The next prime is 22315303. The reversal of 22315290 is 9251322.

It is a super-3 number, since 3×22315290³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22315290.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15481 + ... + 16860.

It is an arithmetic number, because the mean of its divisors is an integer number (1746468).

Almost surely, 2^22315290 is an apocalyptic number.

22315290 is an abundant number, since it is smaller than the sum of its proper divisors (33571686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22315290 is a wasteful number, since it uses less digits than its factorization.

22315290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32374.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 22315290 is about 4723.9062226086. The cubic root of 22315290 is about 281.5361571464.

The spelling of 22315290 in words is "twenty-two million, three hundred fifteen thousand, two hundred ninety".