22922380 has 48 divisors (see below), whose sum is σ = 52313184. Its totient is φ = 8386560.

The previous prime is 22922377. The next prime is 22922381. The reversal of 22922380 is 8322922.

It is not an unprimeable number, because it can be changed into a prime (22922381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33724 + ... + 34396.

It is an arithmetic number, because the mean of its divisors is an integer number (1089858).

Almost surely, 2^22922380 is an apocalyptic number.

22922380 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 22922380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26156592).

22922380 is an abundant number, since it is smaller than the sum of its proper divisors (29390804).

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

22922380 is a wasteful number, since it uses less digits than its factorization.

22922380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 22922380 is about 4787.7322397979. The cubic root of 22922380 is about 284.0664230009.

The spelling of 22922380 in words is "twenty-two million, nine hundred twenty-two thousand, three hundred eighty".