22659740 has 12 divisors (see below), whose sum is σ = 47585496. Its totient is φ = 9063888.

The previous prime is 22659739. The next prime is 22659743. The reversal of 22659740 is 4795622.

It is a self number, because there is not a number n which added to its sum of digits gives 22659740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22659743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566474 + ... + 566513.

It is an arithmetic number, because the mean of its divisors is an integer number (3965458).

Almost surely, 2^22659740 is an apocalyptic number.

22659740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22659740 is an abundant number, since it is smaller than the sum of its proper divisors (24925756).

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

22659740 is a wasteful number, since it uses less digits than its factorization.

22659740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132996 (or 1132994 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 22659740 is about 4760.2247846084. The cubic root of 22659740 is about 282.9773275714.

The spelling of 22659740 in words is "twenty-two million, six hundred fifty-nine thousand, seven hundred forty".