22460891 has 4 divisors (see below), whose sum is σ = 22604112. Its totient is φ = 22317672.

The previous prime is 22460863. The next prime is 22460899. The reversal of 22460891 is 19806422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19806422 = 2 ⋅9903211.

It is a cyclic number.

It is not a de Polignac number, because 22460891 - 2¹⁸ = 22198747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22460899) 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, 71375 + ... + 71688.

It is an arithmetic number, because the mean of its divisors is an integer number (5651028).

Almost surely, 2^22460891 is an apocalyptic number.

22460891 is a deficient number, since it is larger than the sum of its proper divisors (143221).

22460891 is a wasteful number, since it uses less digits than its factorization.

22460891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143220.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 22460891 is about 4739.2922467390. The cubic root of 22460891 is about 282.1471450108.

The spelling of 22460891 in words is "twenty-two million, four hundred sixty thousand, eight hundred ninety-one".