22606840 has 16 divisors (see below), whose sum is σ = 50865480. Its totient is φ = 9042720.

The previous prime is 22606813. The next prime is 22606841. The reversal of 22606840 is 4860622.

It is a super-2 number, since 2×22606840² = 1022138429571200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22606799 and 22606808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22606841) 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, 282546 + ... + 282625.

Almost surely, 2^22606840 is an apocalyptic number.

22606840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22606840 is an abundant number, since it is smaller than the sum of its proper divisors (28258640).

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

22606840 is a wasteful number, since it uses less digits than its factorization.

22606840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565182 (or 565178 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 22606840 is about 4754.6650775843. The cubic root of 22606840 is about 282.7569489805.

The spelling of 22606840 in words is "twenty-two million, six hundred six thousand, eight hundred forty".