22328904 has 64 divisors (see below), whose sum is σ = 61185600. Its totient is φ = 6748416.

The previous prime is 22328879. The next prime is 22328941. The reversal of 22328904 is 40982322.

It is a super-3 number, since 3×22328904³ (a number of 23 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 17802 + ... + 19014.

It is an arithmetic number, because the mean of its divisors is an integer number (956025).

Almost surely, 2^22328904 is an apocalyptic number.

22328904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22328904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30592800).

22328904 is an abundant number, since it is smaller than the sum of its proper divisors (38856696).

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

22328904 is a wasteful number, since it uses less digits than its factorization.

22328904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 22328904 is about 4725.3469713874. The cubic root of 22328904 is about 281.5933982289.

It can be divided in two parts, 22328 and 904, that added together give a palindrome (23232).

The spelling of 22328904 in words is "twenty-two million, three hundred twenty-eight thousand, nine hundred four".