22479738 has 32 divisors (see below), whose sum is σ = 46158336. Its totient is φ = 7295808.

The previous prime is 22479733. The next prime is 22479739. The reversal of 22479738 is 83797422.

It is a self number, because there is not a number n which added to its sum of digits gives 22479738.

It is not an unprimeable number, because it can be changed into a prime (22479733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70756 + ... + 71072.

It is an arithmetic number, because the mean of its divisors is an integer number (1442448).

Almost surely, 2^22479738 is an apocalyptic number.

22479738 is an abundant number, since it is smaller than the sum of its proper divisors (23678598).

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

22479738 is a wasteful number, since it uses less digits than its factorization.

22479738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598.

The product of its digits is 169344, while the sum is 42.

The square root of 22479738 is about 4741.2802068640. The cubic root of 22479738 is about 282.2260397823.

The spelling of 22479738 in words is "twenty-two million, four hundred seventy-nine thousand, seven hundred thirty-eight".