22978552 has 16 divisors (see below), whose sum is σ = 43336440. Its totient is φ = 11422176.

The previous prime is 22978531. The next prime is 22978559. The reversal of 22978552 is 25587922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22978559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6918 + ... + 9685.

Almost surely, 2^22978552 is an apocalyptic number.

It is an amenable number.

22978552 is a deficient number, since it is larger than the sum of its proper divisors (20357888).

22978552 is a wasteful number, since it uses less digits than its factorization.

22978552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16782 (or 16778 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 22978552 is about 4793.5948931882. The cubic root of 22978552 is about 284.2982715669.

The spelling of 22978552 in words is "twenty-two million, nine hundred seventy-eight thousand, five hundred fifty-two".