22364788 has 6 divisors (see below), whose sum is σ = 39138386. Its totient is φ = 11182392.

The previous prime is 22364759. The next prime is 22364813. The reversal of 22364788 is 88746322.

It can be written as a sum of positive squares in only one way, i.e., 21790224 + 574564 = 4668^2 + 758^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22364788.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2795595 + ... + 2795602.

Almost surely, 2^22364788 is an apocalyptic number.

It is an amenable number.

22364788 is a deficient number, since it is larger than the sum of its proper divisors (16773598).

22364788 is a wasteful number, since it uses less digits than its factorization.

22364788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5591201 (or 5591199 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 22364788 is about 4729.1424169716. The cubic root of 22364788 is about 281.7441637921.

The spelling of 22364788 in words is "twenty-two million, three hundred sixty-four thousand, seven hundred eighty-eight".