22440130446 has 32 divisors (see below), whose sum is σ = 45744289920. Its totient is φ = 7336613024.

The previous prime is 22440130439. The next prime is 22440130459. The reversal of 22440130446 is 64403104422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85276 + ... + 228368.

It is an arithmetic number, because the mean of its divisors is an integer number (1429509060).

Almost surely, 2^22440130446 is an apocalyptic number.

22440130446 is an abundant number, since it is smaller than the sum of its proper divisors (23304159474).

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

22440130446 is a wasteful number, since it uses less digits than its factorization.

22440130446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143600.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 22440130446 its reverse (64403104422), we get a palindrome (86843234868).

The spelling of 22440130446 in words is "twenty-two billion, four hundred forty million, one hundred thirty thousand, four hundred forty-six".