22397604 has 12 divisors (see below), whose sum is σ = 52261104. Its totient is φ = 7465864.

The previous prime is 22397597. The next prime is 22397611. The reversal of 22397604 is 40679322.

It is an interprime number because it is at equal distance from previous prime (22397597) and next prime (22397611).

It is a tau number, because it is divible by the number of its divisors (12).

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, 933222 + ... + 933245.

It is an arithmetic number, because the mean of its divisors is an integer number (4355092).

Almost surely, 2^22397604 is an apocalyptic number.

It is an amenable number.

22397604 is an abundant number, since it is smaller than the sum of its proper divisors (29863500).

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

22397604 is a wasteful number, since it uses less digits than its factorization.

22397604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866474 (or 1866472 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 22397604 is about 4732.6106960112. The cubic root of 22397604 is about 281.8818981339.

The spelling of 22397604 in words is "twenty-two million, three hundred ninety-seven thousand, six hundred four".