22451030405 has 18 divisors (see below), whose sum is σ = 27227679414. Its totient is φ = 17771858944.

The previous prime is 22451030383. The next prime is 22451030423. The reversal of 22451030405 is 50403015422.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 15896670724 + 6554359681 = 126082^2 + 80959^2 .

It is not a de Polignac number, because 22451030405 - 2³⁴ = 5271161221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 37859789 + ... + 37860381.

Almost surely, 2^22451030405 is an apocalyptic number.

It is an amenable number.

22451030405 is a deficient number, since it is larger than the sum of its proper divisors (4776649009).

22451030405 is an frugal number, since it uses more digits than its factorization.

22451030405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 22451030405 its reverse (50403015422), we get a palindrome (72854045827).

The spelling of 22451030405 in words is "twenty-two billion, four hundred fifty-one million, thirty thousand, four hundred five".