22978416 has 40 divisors (see below), whose sum is σ = 59639040. Its totient is φ = 7623616.

The previous prime is 22978381. The next prime is 22978421. The reversal of 22978416 is 61487922.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10471 + ... + 12473.

It is an arithmetic number, because the mean of its divisors is an integer number (1490976).

Almost surely, 2^22978416 is an apocalyptic number.

It is an amenable number.

22978416 is an abundant number, since it is smaller than the sum of its proper divisors (36660624).

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

22978416 is a wasteful number, since it uses less digits than its factorization.

22978416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253 (or 2247 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 22978416 is about 4793.5807075713. The cubic root of 22978416 is about 284.2977106867.

The spelling of 22978416 in words is "twenty-two million, nine hundred seventy-eight thousand, four hundred sixteen".