22020482449 has 81 divisors (see below), whose sum is σ = 28852403697. Its totient is φ = 16752976128.

The previous prime is 22020482437. The next prime is 22020482467. The reversal of 22020482449 is 94428402022.

The square root of 22020482449 is 148393.

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

It can be written as a sum of positive squares in 4 ways, for example, as 2176689025 + 19843793424 = 46655^2 + 140868^2 .

It is not a de Polignac number, because 22020482449 - 2²¹ = 22018385297 is a prime.

It is a super-3 number, since 3×22020482449³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22020482249) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 512104222 + ... + 512104264.

Almost surely, 2^22020482449 is an apocalyptic number.

22020482449 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

22020482449 is the 148393-rd square number.

22020482449 is the 74197-th centered octagonal number.

It is an amenable number.

22020482449 is a deficient number, since it is larger than the sum of its proper divisors (6831921248).

22020482449 is an equidigital number, since it uses as much as digits as its factorization.

22020482449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 96 counting only the distinct ones).

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

The spelling of 22020482449 in words is "twenty-two billion, twenty million, four hundred eighty-two thousand, four hundred forty-nine".