22733331 has 4 divisors (see below), whose sum is σ = 30311112. Its totient is φ = 15155552.

The previous prime is 22733317. The next prime is 22733339. The reversal of 22733331 is 13333722.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22733331 - 2⁵ = 22733299 is a prime.

It is a super-2 number, since 2×22733331² = 1033608676711122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22733339) 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, 3788886 + ... + 3788891.

It is an arithmetic number, because the mean of its divisors is an integer number (7577778).

Almost surely, 2^22733331 is an apocalyptic number.

22733331 is a deficient number, since it is larger than the sum of its proper divisors (7577781).

22733331 is an equidigital number, since it uses as much as digits as its factorization.

22733331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7577780.

The product of its digits is 2268, while the sum is 24.

The square root of 22733331 is about 4767.9483008942. The cubic root of 22733331 is about 283.2833340454.

The spelling of 22733331 in words is "twenty-two million, seven hundred thirty-three thousand, three hundred thirty-one".