8913144444 has 12 divisors (see below), whose sum is σ = 20797337064. Its totient is φ = 2971048144.

The previous prime is 8913144419. The next prime is 8913144451. The reversal of 8913144444 is 4444413198.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 8913144396 and 8913144405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371381007 + ... + 371381030.

It is an arithmetic number, because the mean of its divisors is an integer number (1733111422).

Almost surely, 2^8913144444 is an apocalyptic number.

It is an amenable number.

8913144444 is an abundant number, since it is smaller than the sum of its proper divisors (11884192620).

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

8913144444 is a wasteful number, since it uses less digits than its factorization.

8913144444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742762044 (or 742762042 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 8913144444 is about 94409.4510311335. The cubic root of 8913144444 is about 2073.3708172993.

The spelling of 8913144444 in words is "eight billion, nine hundred thirteen million, one hundred forty-four thousand, four hundred forty-four".