22436145369 has 135 divisors (see below), whose sum is σ = 39578754061. Its totient is φ = 12654005760.

The previous prime is 22436145349. The next prime is 22436145371. The reversal of 22436145369 is 96354163422.

The square root of 22436145369 is 149787.

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

22436145369 is a `hidden beast` number, since 2 + 24 + 3 + 614 + 5 + 3 + 6 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 29648025 + 22406497344 = 5445^2 + 149688^2 .

It is not a de Polignac number, because 22436145369 - 2¹³ = 22436137177 is a prime.

It is a super-2 number, since 2×22436145369² (a number of 22 digits) contains 22 as substring.

Its product of digits (933120) is a multiple of the sum of its prime divisors (120).

It is not an unprimeable number, because it can be changed into a prime (22436145349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 252091477 + ... + 252091565.

Almost surely, 2^22436145369 is an apocalyptic number.

22436145369 is the 149787-th square number.

22436145369 is the 74894-th centered octagonal number.

It is an amenable number.

22436145369 is a deficient number, since it is larger than the sum of its proper divisors (17142608692).

22436145369 is an equidigital number, since it uses as much as digits as its factorization.

22436145369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 120 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The spelling of 22436145369 in words is "twenty-two billion, four hundred thirty-six million, one hundred forty-five thousand, three hundred sixty-nine".