22084040449 has 9 divisors (see below), whose sum is σ = 22238320323. Its totient is φ = 21930826632.

The previous prime is 22084040411. The next prime is 22084040501. The reversal of 22084040449 is 94404048022.

The square root of 22084040449 is 148607.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 20088810225 + 1995230224 = 141735^2 + 44668^2 .

It is not a de Polignac number, because 22084040449 - 2²³ = 22075651841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22084044449) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 25708582 + ... + 25709440.

Almost surely, 2^22084040449 is an apocalyptic number.

22084040449 is the 148607-th square number.

22084040449 is the 74304-th centered octagonal number.

It is an amenable number.

22084040449 is a deficient number, since it is larger than the sum of its proper divisors (154279874).

22084040449 is an frugal number, since it uses more digits than its factorization.

22084040449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064 (or 1032 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

The spelling of 22084040449 in words is "twenty-two billion, eighty-four million, forty thousand, four hundred forty-nine".