22890634 has 8 divisors (see below), whose sum is σ = 36977220. Its totient is φ = 10564896.

The previous prime is 22890601. The next prime is 22890641. The reversal of 22890634 is 43609822.

It can be written as a sum of positive squares in 2 ways, for example, as 21187609 + 1703025 = 4603^2 + 1305^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22890634² = 1047962249843912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22890634.

It is an unprimeable number.

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, 440179 + ... + 440230.

Almost surely, 2^22890634 is an apocalyptic number.

22890634 is a deficient number, since it is larger than the sum of its proper divisors (14086586).

22890634 is a wasteful number, since it uses less digits than its factorization.

22890634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880424.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 22890634 is about 4784.4157428050. The cubic root of 22890634 is about 283.9352245975.

The spelling of 22890634 in words is "twenty-two million, eight hundred ninety thousand, six hundred thirty-four".