22066700 has 18 divisors (see below), whose sum is σ = 47884956. Its totient is φ = 8826640.

The previous prime is 22066691. The next prime is 22066721. The reversal of 22066700 is 766022.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110234 + ... + 110433.

Almost surely, 2^22066700 is an apocalyptic number.

22066700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22066700 is an abundant number, since it is smaller than the sum of its proper divisors (25818256).

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

22066700 is a wasteful number, since it uses less digits than its factorization.

22066700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220681 (or 220674 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 22066700 is about 4697.5206226264. The cubic root of 22066700 is about 280.4868231604.

The spelling of 22066700 in words is "twenty-two million, sixty-six thousand, seven hundred".