22878226 has 32 divisors (see below), whose sum is σ = 41997312. Its totient is φ = 9123840.

The previous prime is 22878221. The next prime is 22878227. The reversal of 22878226 is 62287822.

It is not an unprimeable number, because it can be changed into a prime (22878221) 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, 22591 + ... + 23581.

It is an arithmetic number, because the mean of its divisors is an integer number (1312416).

Almost surely, 2^22878226 is an apocalyptic number.

22878226 is a deficient number, since it is larger than the sum of its proper divisors (19119086).

22878226 is a wasteful number, since it uses less digits than its factorization.

22878226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114.

The product of its digits is 43008, while the sum is 37.

The square root of 22878226 is about 4783.1188569802. The cubic root of 22878226 is about 283.8839124171.

It can be divided in two parts, 22878 and 226, that added together give a square (23104 = 152²).

The spelling of 22878226 in words is "twenty-two million, eight hundred seventy-eight thousand, two hundred twenty-six".