22733740 has 24 divisors (see below), whose sum is σ = 48110832. Its totient is φ = 9023040.

The previous prime is 22733723. The next prime is 22733749. The reversal of 22733740 is 4733722.

It is a junction number, because it is equal to n+sod(n) for n = 22733699 and 22733708.

It is not an unprimeable number, because it can be changed into a prime (22733749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1719 + ... + 6958.

It is an arithmetic number, because the mean of its divisors is an integer number (2004618).

Almost surely, 2^22733740 is an apocalyptic number.

22733740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22733740 is an abundant number, since it is smaller than the sum of its proper divisors (25377092).

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

22733740 is a wasteful number, since it uses less digits than its factorization.

22733740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8817 (or 8815 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 22733740 is about 4767.9911912670. The cubic root of 22733740 is about 283.2850329046.

The spelling of 22733740 in words is "twenty-two million, seven hundred thirty-three thousand, seven hundred forty".