22345400252 has 24 divisors (see below), whose sum is σ = 44700947424. Its totient is φ = 9574425792.

The previous prime is 22345400239. The next prime is 22345400291. The reversal of 22345400252 is 25200454322.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38138 + ... + 214814.

It is an arithmetic number, because the mean of its divisors is an integer number (1862539476).

Almost surely, 2^22345400252 is an apocalyptic number.

It is an amenable number.

22345400252 is an abundant number, since it is smaller than the sum of its proper divisors (22355547172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22345400252 is a wasteful number, since it uses less digits than its factorization.

22345400252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181205 (or 181203 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 22345400252 its reverse (25200454322), we get a palindrome (47545854574).

The spelling of 22345400252 in words is "twenty-two billion, three hundred forty-five million, four hundred thousand, two hundred fifty-two".