22396420 has 12 divisors (see below), whose sum is σ = 47032524. Its totient is φ = 8958560.

The previous prime is 22396399. The next prime is 22396441. The reversal of 22396420 is 2469322.

It is an interprime number because it is at equal distance from previous prime (22396399) and next prime (22396441).

It can be written as a sum of positive squares in 2 ways, for example, as 7139584 + 15256836 = 2672^2 + 3906^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559891 + ... + 559930.

It is an arithmetic number, because the mean of its divisors is an integer number (3919377).

Almost surely, 2^22396420 is an apocalyptic number.

22396420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22396420 is an abundant number, since it is smaller than the sum of its proper divisors (24636104).

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

22396420 is a wasteful number, since it uses less digits than its factorization.

22396420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119830 (or 1119828 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 22396420 is about 4732.4856048381. The cubic root of 22396420 is about 281.8769310245.

The spelling of 22396420 in words is "twenty-two million, three hundred ninety-six thousand, four hundred twenty".