22442404451 has 8 divisors (see below), whose sum is σ = 22736683200. Its totient is φ = 22148380800.

The previous prime is 22442404421. The next prime is 22442404499. The reversal of 22442404451 is 15440424422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22442404451 is a prime.

It is a super-2 number, since 2×22442404451² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22442404421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116651 + ... + 241851.

It is an arithmetic number, because the mean of its divisors is an integer number (2842085400).

Almost surely, 2^22442404451 is an apocalyptic number.

22442404451 is a deficient number, since it is larger than the sum of its proper divisors (294278749).

22442404451 is a wasteful number, since it uses less digits than its factorization.

22442404451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127549.

The product of its (nonzero) digits is 40960, while the sum is 32.

Adding to 22442404451 its reverse (15440424422), we get a palindrome (37882828873).

The spelling of 22442404451 in words is "twenty-two billion, four hundred forty-two million, four hundred four thousand, four hundred fifty-one".