22820700 has 72 divisors (see below), whose sum is σ = 75467392. Its totient is φ = 5215680.

The previous prime is 22820683. The next prime is 22820701. The reversal of 22820700 is 702822.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22820701) 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, 3334 + ... + 7533.

Almost surely, 2^22820700 is an apocalyptic number.

22820700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22820700 is an abundant number, since it is smaller than the sum of its proper divisors (52646692).

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

22820700 is a wasteful number, since it uses less digits than its factorization.

22820700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10891 (or 10884 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 22820700 is about 4777.1016317428. The cubic root of 22820700 is about 283.6457760534.

The spelling of 22820700 in words is "twenty-two million, eight hundred twenty thousand, seven hundred".