22669640 has 32 divisors (see below), whose sum is σ = 58294080. Its totient is φ = 7772352.

The previous prime is 22669609. The next prime is 22669657. The reversal of 22669640 is 4696622.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 22669640.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40202 + ... + 40761.

It is an arithmetic number, because the mean of its divisors is an integer number (1821690).

Almost surely, 2^22669640 is an apocalyptic number.

22669640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22669640 is an abundant number, since it is smaller than the sum of its proper divisors (35624440).

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

22669640 is a wasteful number, since it uses less digits than its factorization.

22669640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80981 (or 80977 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 22669640 is about 4761.2645379143. The cubic root of 22669640 is about 283.0185323345.

The spelling of 22669640 in words is "twenty-two million, six hundred sixty-nine thousand, six hundred forty".