22701840 has 80 divisors (see below), whose sum is σ = 80435328. Its totient is φ = 5188608.

The previous prime is 22701829. The next prime is 22701857. The reversal of 22701840 is 4810722.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 22701840.

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 15 ways as a sum of consecutive naturals, for example, 5077 + ... + 8436.

Almost surely, 2^22701840 is an apocalyptic number.

22701840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22701840 is an abundant number, since it is smaller than the sum of its proper divisors (57733488).

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

22701840 is a wasteful number, since it uses less digits than its factorization.

22701840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13536 (or 13530 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 22701840 is about 4764.6447926367. The cubic root of 22701840 is about 283.1524689613.

The spelling of 22701840 in words is "twenty-two million, seven hundred one thousand, eight hundred forty".