990441144234 has 64 divisors (see below), whose sum is σ = 2213473651200. Its totient is φ = 328277162304.

The previous prime is 990441144233. The next prime is 990441144283. The reversal of 990441144234 is 432441144099.

It is a self number, because there is not a number n which added to its sum of digits gives 990441144234.

It is not an unprimeable number, because it can be changed into a prime (990441144233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8680684 + ... + 8794040.

It is an arithmetic number, because the mean of its divisors is an integer number (34585525800).

Almost surely, 2^990441144234 is an apocalyptic number.

990441144234 is an abundant number, since it is smaller than the sum of its proper divisors (1223032506966).

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

990441144234 is a wasteful number, since it uses less digits than its factorization.

990441144234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114284 (or 114278 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 990441144234 in words is "nine hundred ninety billion, four hundred forty-one million, one hundred forty-four thousand, two hundred thirty-four".