22978674 has 32 divisors (see below), whose sum is σ = 51367680. Its totient is φ = 7614000.

The previous prime is 22978673. The next prime is 22978691. The reversal of 22978674 is 47687922.

It is not an unprimeable number, because it can be changed into a prime (22978673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8599 + ... + 10949.

It is an arithmetic number, because the mean of its divisors is an integer number (1605240).

Almost surely, 2^22978674 is an apocalyptic number.

22978674 is an abundant number, since it is smaller than the sum of its proper divisors (28389006).

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

22978674 is a wasteful number, since it uses less digits than its factorization.

22978674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543 (or 2537 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 22978674 is about 4793.6076184853. The cubic root of 22978674 is about 284.2987747075.

The spelling of 22978674 in words is "twenty-two million, nine hundred seventy-eight thousand, six hundred seventy-four".