22827920 has 40 divisors (see below), whose sum is σ = 53835840. Its totient is φ = 9000320.

The previous prime is 22827913. The next prime is 22827941. The reversal of 22827920 is 2972822.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×22827920² = 1042227863052800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 3671 + ... + 7689.

It is an arithmetic number, because the mean of its divisors is an integer number (1345896).

Almost surely, 2^22827920 is an apocalyptic number.

22827920 is a gapful number since it is divisible by the number (20) 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 22827920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26917920).

22827920 is an abundant number, since it is smaller than the sum of its proper divisors (31007920).

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

22827920 is a wasteful number, since it uses less digits than its factorization.

22827920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103 (or 4097 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 22827920 is about 4777.8572603208. The cubic root of 22827920 is about 283.6756861287.

The spelling of 22827920 in words is "twenty-two million, eight hundred twenty-seven thousand, nine hundred twenty".