22345490 has 8 divisors (see below), whose sum is σ = 40221900. Its totient is φ = 8938192.

The previous prime is 22345487. The next prime is 22345493. The reversal of 22345490 is 9454322.

It is an interprime number because it is at equal distance from previous prime (22345487) and next prime (22345493).

It can be written as a sum of positive squares in 2 ways, for example, as 22344529 + 961 = 4727^2 + 31^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22345493) 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, 1117265 + ... + 1117284.

Almost surely, 2^22345490 is an apocalyptic number.

22345490 is a deficient number, since it is larger than the sum of its proper divisors (17876410).

22345490 is a wasteful number, since it uses less digits than its factorization.

22345490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234556.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 22345490 is about 4727.1016490023. The cubic root of 22345490 is about 281.6631038768.

The spelling of 22345490 in words is "twenty-two million, three hundred forty-five thousand, four hundred ninety".