22733380 has 12 divisors (see below), whose sum is σ = 47740140. Its totient is φ = 9093344.

The previous prime is 22733371. The next prime is 22733387. The reversal of 22733380 is 8333722.

It can be written as a sum of positive squares in 2 ways, for example, as 5692996 + 17040384 = 2386^2 + 4128^2 .

It is not an unprimeable number, because it can be changed into a prime (22733387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568315 + ... + 568354.

It is an arithmetic number, because the mean of its divisors is an integer number (3978345).

Almost surely, 2^22733380 is an apocalyptic number.

22733380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22733380 is an abundant number, since it is smaller than the sum of its proper divisors (25006760).

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

22733380 is a wasteful number, since it uses less digits than its factorization.

22733380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136678 (or 1136676 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 22733380 is about 4767.9534393700. The cubic root of 22733380 is about 283.2835375773.

The spelling of 22733380 in words is "twenty-two million, seven hundred thirty-three thousand, three hundred eighty".