3847148640 has 72 divisors (see below), whose sum is σ = 13128399648. Its totient is φ = 1025905920.

The previous prime is 3847148629. The next prime is 3847148647. The reversal of 3847148640 is 468417483.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3847148647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1334376 + ... + 1337255.

It is an arithmetic number, because the mean of its divisors is an integer number (182338884).

Almost surely, 2^3847148640 is an apocalyptic number.

3847148640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3847148640 is an abundant number, since it is smaller than the sum of its proper divisors (9281251008).

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

3847148640 is a wasteful number, since it uses less digits than its factorization.

3847148640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671652 (or 2671641 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 3847148640 is about 62025.3870604610. The cubic root of 3847148640 is about 1566.9181894844.

The spelling of 3847148640 in words is "three billion, eight hundred forty-seven million, one hundred forty-eight thousand, six hundred forty".