22400700 has 72 divisors (see below), whose sum is σ = 74078592. Its totient is φ = 5119680.

The previous prime is 22400681. The next prime is 22400701. The reversal of 22400700 is 700422.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22400700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22400701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3234 + ... + 7433.

Almost surely, 2^22400700 is an apocalyptic number.

22400700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22400700 is an abundant number, since it is smaller than the sum of its proper divisors (51677892).

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

22400700 is a wasteful number, since it uses less digits than its factorization.

22400700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10691 (or 10684 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 22400700 is about 4732.9377768992. The cubic root of 22400700 is about 281.8948856265.

The spelling of 22400700 in words is "twenty-two million, four hundred thousand, seven hundred".