22294549 has 4 divisors (see below), whose sum is σ = 23013760. Its totient is φ = 21575340.

The previous prime is 22294537. The next prime is 22294553. The reversal of 22294549 is 94549222.

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 a de Polignac number, because none of the positive numbers 2^k-22294549 is a prime.

It is a super-2 number, since 2×22294549² = 994093830226802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22294849) 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, 359559 + ... + 359620.

It is an arithmetic number, because the mean of its divisors is an integer number (5753440).

Almost surely, 2^22294549 is an apocalyptic number.

It is an amenable number.

22294549 is a deficient number, since it is larger than the sum of its proper divisors (719211).

22294549 is an equidigital number, since it uses as much as digits as its factorization.

22294549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719210.

The product of its digits is 51840, while the sum is 37.

The square root of 22294549 is about 4721.7103892551. The cubic root of 22294549 is about 281.4489052890.

The spelling of 22294549 in words is "twenty-two million, two hundred ninety-four thousand, five hundred forty-nine".