22910472 has 128 divisors (see below), whose sum is σ = 70560000. Its totient is φ = 6842880.

The previous prime is 22910453. The next prime is 22910483. The reversal of 22910472 is 27401922.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115029 + ... + 115227.

It is an arithmetic number, because the mean of its divisors is an integer number (551250).

Almost surely, 2^22910472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22910472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35280000).

22910472 is an abundant number, since it is smaller than the sum of its proper divisors (47649528).

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

22910472 is a wasteful number, since it uses less digits than its factorization.

22910472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 22910472 is about 4786.4884832202. The cubic root of 22910472 is about 284.0172243736.

It can be divided in two parts, 229 and 10472, that added together give a palindrome (10701).

The spelling of 22910472 in words is "twenty-two million, nine hundred ten thousand, four hundred seventy-two".