3912847740 has 72 divisors (see below), whose sum is σ = 11893413168. Its totient is φ = 1041277440.

The previous prime is 3912847703. The next prime is 3912847753. The reversal of 3912847740 is 477482193.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66244 + ... + 110516.

It is an arithmetic number, because the mean of its divisors is an integer number (165186294).

Almost surely, 2^3912847740 is an apocalyptic number.

3912847740 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 3912847740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5946706584).

3912847740 is an abundant number, since it is smaller than the sum of its proper divisors (7980565428).

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

3912847740 is a wasteful number, since it uses less digits than its factorization.

3912847740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44779 (or 44774 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 3912847740 is about 62552.7596513535. The cubic root of 3912847740 is about 1575.7874943231.

It can be divided in two parts, 39128 and 47740, that added together give a palindrome (86868).

The spelling of 3912847740 in words is "three billion, nine hundred twelve million, eight hundred forty-seven thousand, seven hundred forty".