22084549 has 4 divisors (see below), whose sum is σ = 22332780. Its totient is φ = 21836320.

The previous prime is 22084541. The next prime is 22084553. The reversal of 22084549 is 94548022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94548022 = 2 ⋅47274011.

It can be written as a sum of positive squares in 2 ways, for example, as 6796449 + 15288100 = 2607^2 + 3910^2 .

It is a cyclic number.

It is not a de Polignac number, because 22084549 - 2³ = 22084541 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 (22084541) 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, 123982 + ... + 124159.

It is an arithmetic number, because the mean of its divisors is an integer number (5583195).

Almost surely, 2^22084549 is an apocalyptic number.

It is an amenable number.

22084549 is a deficient number, since it is larger than the sum of its proper divisors (248231).

22084549 is an equidigital number, since it uses as much as digits as its factorization.

22084549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248230.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 22084549 is about 4699.4200706045. The cubic root of 22084549 is about 280.5624281833.

The spelling of 22084549 in words is "twenty-two million, eighty-four thousand, five hundred forty-nine".