22396920 has 192 divisors, whose sum is σ = 84460320. Its totient is φ = 4709376.

The previous prime is 22396901. The next prime is 22396921. The reversal of 22396920 is 2969322.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22396921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76294 + ... + 76586.

Almost surely, 2^22396920 is an apocalyptic number.

22396920 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 22396920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42230160).

22396920 is an abundant number, since it is smaller than the sum of its proper divisors (62063400).

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

22396920 is a wasteful number, since it uses less digits than its factorization.

22396920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 22396920 is about 4732.5384309058. The cubic root of 22396920 is about 281.8790286427.

The spelling of 22396920 in words is "twenty-two million, three hundred ninety-six thousand, nine hundred twenty".