22394549 has 4 divisors (see below), whose sum is σ = 22728864. Its totient is φ = 22060236.

The previous prime is 22394543. The next prime is 22394573. The reversal of 22394549 is 94549322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22394549 - 2²⁴ = 5617333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22394543) 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, 167057 + ... + 167190.

It is an arithmetic number, because the mean of its divisors is an integer number (5682216).

Almost surely, 2^22394549 is an apocalyptic number.

It is an amenable number.

22394549 is a deficient number, since it is larger than the sum of its proper divisors (334315).

22394549 is an equidigital number, since it uses as much as digits as its factorization.

22394549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334314.

The product of its digits is 77760, while the sum is 38.

The square root of 22394549 is about 4732.2879244611. The cubic root of 22394549 is about 281.8690814601.

The spelling of 22394549 in words is "twenty-two million, three hundred ninety-four thousand, five hundred forty-nine".