22324404145 has 4 divisors (see below), whose sum is σ = 26789284980. Its totient is φ = 17859523312.

The previous prime is 22324404143. The next prime is 22324404161. The reversal of 22324404145 is 54140442322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13177203264 + 9147200881 = 114792^2 + 95641^2 .

It is a cyclic number.

It is not a de Polignac number, because 22324404145 - 2¹ = 22324404143 is a prime.

It is a super-3 number, since 3×22324404145³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22324404143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2232440410 + ... + 2232440419.

It is an arithmetic number, because the mean of its divisors is an integer number (6697321245).

Almost surely, 2^22324404145 is an apocalyptic number.

It is an amenable number.

22324404145 is a deficient number, since it is larger than the sum of its proper divisors (4464880835).

22324404145 is an equidigital number, since it uses as much as digits as its factorization.

22324404145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4464880834.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 22324404145 its reverse (54140442322), we get a palindrome (76464846467).

The spelling of 22324404145 in words is "twenty-two billion, three hundred twenty-four million, four hundred four thousand, one hundred forty-five".