22454691 has 12 divisors (see below), whose sum is σ = 34827912. Its totient is φ = 12831168.

The previous prime is 22454689. The next prime is 22454701. The reversal of 22454691 is 19645422.

It is not a de Polignac number, because 22454691 - 2¹ = 22454689 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22454491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76230 + ... + 76523.

It is an arithmetic number, because the mean of its divisors is an integer number (2902326).

Almost surely, 2^22454691 is an apocalyptic number.

22454691 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22454691 is a deficient number, since it is larger than the sum of its proper divisors (12373221).

22454691 is a wasteful number, since it uses less digits than its factorization.

22454691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152770 (or 152763 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 22454691 is about 4738.6380954869. The cubic root of 22454691 is about 282.1211817594.

The spelling of 22454691 in words is "twenty-two million, four hundred fifty-four thousand, six hundred ninety-one".