3847740840 has 256 divisors, whose sum is σ = 13470105600. Its totient is φ = 975110400.

The previous prime is 3847740803. The next prime is 3847740857. The reversal of 3847740840 is 480477483.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4744035 + ... + 4744845.

It is an arithmetic number, because the mean of its divisors is an integer number (52617600).

Almost surely, 2^3847740840 is an apocalyptic number.

3847740840 is a gapful number since it is divisible by the number (30) 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 3847740840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6735052800).

3847740840 is an abundant number, since it is smaller than the sum of its proper divisors (9622364760).

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

3847740840 is a wasteful number, since it uses less digits than its factorization.

3847740840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045 (or 1035 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The square root of 3847740840 is about 62030.1607284714. The cubic root of 3847740840 is about 1566.9985850735.

The spelling of 3847740840 in words is "three billion, eight hundred forty-seven million, seven hundred forty thousand, eight hundred forty".