22179474 has 16 divisors (see below), whose sum is σ = 49287840. Its totient is φ = 7393140.

The previous prime is 22179473. The next prime is 22179511. The reversal of 22179474 is 47497122.

It is not an unprimeable number, because it can be changed into a prime (22179473) 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, 205312 + ... + 205419.

It is an arithmetic number, because the mean of its divisors is an integer number (3080490).

Almost surely, 2^22179474 is an apocalyptic number.

22179474 is an abundant number, since it is smaller than the sum of its proper divisors (27108366).

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

22179474 is a wasteful number, since it uses less digits than its factorization.

22179474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410742 (or 410736 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 22179474 is about 4709.5088915937. The cubic root of 22179474 is about 280.9638298112.

It can be divided in two parts, 2217947 and 4, that multiplied together give a palindrome (8871788).

The spelling of 22179474 in words is "twenty-two million, one hundred seventy-nine thousand, four hundred seventy-four".