22451442405 has 32 divisors (see below), whose sum is σ = 41061414144. Its totient is φ = 10261679616.

The previous prime is 22451442389. The next prime is 22451442439. The reversal of 22451442405 is 50424415422.

It is not a de Polignac number, because 22451442405 - 2⁴ = 22451442389 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 697527 + ... + 729003.

It is an arithmetic number, because the mean of its divisors is an integer number (1283169192).

Almost surely, 2^22451442405 is an apocalyptic number.

It is an amenable number.

22451442405 is a deficient number, since it is larger than the sum of its proper divisors (18609971739).

22451442405 is a wasteful number, since it uses less digits than its factorization.

22451442405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38285.

The product of its (nonzero) digits is 51200, while the sum is 33.

Adding to 22451442405 its reverse (50424415422), we get a palindrome (72875857827).

The spelling of 22451442405 in words is "twenty-two billion, four hundred fifty-one million, four hundred forty-two thousand, four hundred five".