22443366420 has 72 divisors (see below), whose sum is σ = 71038146816. Its totient is φ = 5724683712.

The previous prime is 22443366389. The next prime is 22443366433. The reversal of 22443366420 is 2466334422.

22443366420 is a `hidden beast` number, since 2 + 2 + 4 + 4 + 3 + 3 + 6 + 642 + 0 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2706412 + ... + 2714691.

It is an arithmetic number, because the mean of its divisors is an integer number (986640928).

Almost surely, 2^22443366420 is an apocalyptic number.

22443366420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22443366420 is an abundant number, since it is smaller than the sum of its proper divisors (48594780396).

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

22443366420 is a wasteful number, since it uses less digits than its factorization.

22443366420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421141 (or 5421136 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

The spelling of 22443366420 in words is "twenty-two billion, four hundred forty-three million, three hundred sixty-six thousand, four hundred twenty".