22809740 has 12 divisors (see below), whose sum is σ = 47900496. Its totient is φ = 9123888.

The previous prime is 22809719. The next prime is 22809751. The reversal of 22809740 is 4790822.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22809697 and 22809706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 570224 + ... + 570263.

It is an arithmetic number, because the mean of its divisors is an integer number (3991708).

Almost surely, 2^22809740 is an apocalyptic number.

22809740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22809740 is an abundant number, since it is smaller than the sum of its proper divisors (25090756).

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

22809740 is a wasteful number, since it uses less digits than its factorization.

22809740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140496 (or 1140494 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 22809740 is about 4775.9543548908. The cubic root of 22809740 is about 283.6003603341.

The spelling of 22809740 in words is "twenty-two million, eight hundred nine thousand, seven hundred forty".