4439662920 has 512 divisors, whose sum is σ = 18612633600. Its totient is φ = 914457600.

The previous prime is 4439662907. The next prime is 4439662943. The reversal of 4439662920 is 292669344.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 16382385 + ... + 16382655.

It is an arithmetic number, because the mean of its divisors is an integer number (36352800).

Almost surely, 2^4439662920 is an apocalyptic number.

4439662920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4439662920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9306316800).

4439662920 is an abundant number, since it is smaller than the sum of its proper divisors (14172970680).

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

4439662920 is a wasteful number, since it uses less digits than its factorization.

4439662920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The square root of 4439662920 is about 66630.7955828234. The cubic root of 4439662920 is about 1643.5515586510.

The spelling of 4439662920 in words is "four billion, four hundred thirty-nine million, six hundred sixty-two thousand, nine hundred twenty".