22591330 has 8 divisors (see below), whose sum is σ = 40664412. Its totient is φ = 9036528.

The previous prime is 22591321. The next prime is 22591333. The reversal of 22591330 is 3319522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21316689 + 1274641 = 4617^2 + 1129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22591295 and 22591304.

It is not an unprimeable number, because it can be changed into a prime (22591333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1129557 + ... + 1129576.

Almost surely, 2^22591330 is an apocalyptic number.

22591330 is a deficient number, since it is larger than the sum of its proper divisors (18073082).

22591330 is a wasteful number, since it uses less digits than its factorization.

22591330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259140.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 22591330 is about 4753.0337680265. The cubic root of 22591330 is about 282.6922699777.

The spelling of 22591330 in words is "twenty-two million, five hundred ninety-one thousand, three hundred thirty".