22480891 has 4 divisors (see below), whose sum is σ = 22598784. Its totient is φ = 22363000.

The previous prime is 22480849. The next prime is 22480897. The reversal of 22480891 is 19808422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19808422 = 2 ⋅9904211.

It is a cyclic number.

It is not a de Polignac number, because 22480891 - 2⁷ = 22480763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22480897) 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, 58660 + ... + 59041.

It is an arithmetic number, because the mean of its divisors is an integer number (5649696).

Almost surely, 2^22480891 is an apocalyptic number.

22480891 is a deficient number, since it is larger than the sum of its proper divisors (117893).

22480891 is a wasteful number, since it uses less digits than its factorization.

22480891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117892.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 22480891 is about 4741.4017969373. The cubic root of 22480891 is about 282.2308648839.

The spelling of 22480891 in words is "twenty-two million, four hundred eighty thousand, eight hundred ninety-one".