22472718 has 8 divisors (see below), whose sum is σ = 44945448. Its totient is φ = 7490904.

The previous prime is 22472717. The next prime is 22472729. The reversal of 22472718 is 81727422.

It is a sphenic number, since it is the product of 3 distinct primes.

22472718 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22472711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1872721 + ... + 1872732.

It is an arithmetic number, because the mean of its divisors is an integer number (5618181).

Almost surely, 2^22472718 is an apocalyptic number.

22472718 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22472718 is a wasteful number, since it uses less digits than its factorization.

22472718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3745458.

The product of its digits is 12544, while the sum is 33.

The square root of 22472718 is about 4740.5398426761. The cubic root of 22472718 is about 282.1966587597.

The spelling of 22472718 in words is "twenty-two million, four hundred seventy-two thousand, seven hundred eighteen".