22990472 has 8 divisors (see below), whose sum is σ = 43107150. Its totient is φ = 11495232.

The previous prime is 22990469. The next prime is 22990481. The reversal of 22990472 is 27409922.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11874916 + 11115556 = 3446^2 + 3334^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1436897 + ... + 1436912.

Almost surely, 2^22990472 is an apocalyptic number.

It is an amenable number.

22990472 is a deficient number, since it is larger than the sum of its proper divisors (20116678).

22990472 is a wasteful number, since it uses less digits than its factorization.

22990472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873815 (or 2873811 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 22990472 is about 4794.8380577450. The cubic root of 22990472 is about 284.3474224676.

The spelling of 22990472 in words is "twenty-two million, nine hundred ninety thousand, four hundred seventy-two".