22604394 has 32 divisors (see below), whose sum is σ = 47568384. Its totient is φ = 7151040.

The previous prime is 22604383. The next prime is 22604399. The reversal of 22604394 is 49340622.

It is not an unprimeable number, because it can be changed into a prime (22604399) 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 15 ways as a sum of consecutive naturals, for example, 8712 + ... + 11004.

It is an arithmetic number, because the mean of its divisors is an integer number (1486512).

Almost surely, 2^22604394 is an apocalyptic number.

22604394 is an abundant number, since it is smaller than the sum of its proper divisors (24963990).

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

22604394 is a wasteful number, since it uses less digits than its factorization.

22604394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 22604394 is about 4754.4078495644. The cubic root of 22604394 is about 282.7467507626.

The spelling of 22604394 in words is "twenty-two million, six hundred four thousand, three hundred ninety-four".