22894978 has 16 divisors (see below), whose sum is σ = 35640000. Its totient is φ = 11017552.

The previous prime is 22894973. The next prime is 22894987. The reversal of 22894978 is 87949822.

It is not an unprimeable number, because it can be changed into a prime (22894973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34413 + ... + 35071.

It is an arithmetic number, because the mean of its divisors is an integer number (2227500).

Almost surely, 2^22894978 is an apocalyptic number.

22894978 is a deficient number, since it is larger than the sum of its proper divisors (12745022).

22894978 is a wasteful number, since it uses less digits than its factorization.

22894978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289.

The product of its digits is 580608, while the sum is 49.

The square root of 22894978 is about 4784.8696951955. The cubic root of 22894978 is about 283.9531844408.

The spelling of 22894978 in words is "twenty-two million, eight hundred ninety-four thousand, nine hundred seventy-eight".