6323844990 has 128 divisors (see below), whose sum is σ = 15883661952. Its totient is φ = 1610219520.

The previous prime is 6323844887. The next prime is 6323844991. The reversal of 6323844990 is 994483236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6323844991) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10959582 + ... + 10960158.

It is an arithmetic number, because the mean of its divisors is an integer number (124091109).

Almost surely, 2^6323844990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6323844990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7941830976).

6323844990 is an abundant number, since it is smaller than the sum of its proper divisors (9559816962).

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

6323844990 is a wasteful number, since it uses less digits than its factorization.

6323844990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814.

The product of its (nonzero) digits is 1119744, while the sum is 48.

The square root of 6323844990 is about 79522.6067857436. The cubic root of 6323844990 is about 1849.2419577550.

The spelling of 6323844990 in words is "six billion, three hundred twenty-three million, eight hundred forty-four thousand, nine hundred ninety".