22327928 has 64 divisors (see below), whose sum is σ = 49920000. Its totient is φ = 9356256.

The previous prime is 22327889. The next prime is 22327931. The reversal of 22327928 is 82972322.

It is a happy number.

It is a super-3 number, since 3×22327928³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216725 + ... + 216827.

It is an arithmetic number, because the mean of its divisors is an integer number (780000).

Almost surely, 2^22327928 is an apocalyptic number.

22327928 is a gapful number since it is divisible by the number (28) 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 22327928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24960000).

22327928 is an abundant number, since it is smaller than the sum of its proper divisors (27592072).

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

22327928 is a wasteful number, since it uses less digits than its factorization.

22327928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 191 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 22327928 is about 4725.2436974192. The cubic root of 22327928 is about 281.5892953382.

The spelling of 22327928 in words is "twenty-two million, three hundred twenty-seven thousand, nine hundred twenty-eight".