4047109920 has 360 divisors, whose sum is σ = 16617438684. Its totient is φ = 924908544.

The previous prime is 4047109903. The next prime is 4047109943. The reversal of 4047109920 is 299017404.

It can be written as a sum of positive squares in 2 ways, for example, as 4000815504 + 46294416 = 63252^2 + 6804^2 .

It is a tau number, because it is divible by the number of its divisors (360).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 631854 + ... + 638226.

Almost surely, 2^4047109920 is an apocalyptic number.

4047109920 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 4047109920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8308719342).

4047109920 is an abundant number, since it is smaller than the sum of its proper divisors (12570328764).

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

4047109920 is a wasteful number, since it uses less digits than its factorization.

4047109920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6414 (or 6390 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 4047109920 is about 63616.8996415261. The cubic root of 4047109920 is about 1593.6086069719.

The spelling of 4047109920 in words is "four billion, forty-seven million, one hundred nine thousand, nine hundred twenty".