3871429320 has 128 divisors (see below), whose sum is σ = 12964976640. Its totient is φ = 916688640.

The previous prime is 3871429319. The next prime is 3871429321. The reversal of 3871429320 is 239241783.

It is an interprime number because it is at equal distance from previous prime (3871429319) and next prime (3871429321).

It is not an unprimeable number, because it can be changed into a prime (3871429321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22657 + ... + 90863.

It is an arithmetic number, because the mean of its divisors is an integer number (101288880).

Almost surely, 2^3871429320 is an apocalyptic number.

3871429320 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 3871429320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6482488320).

3871429320 is an abundant number, since it is smaller than the sum of its proper divisors (9093547320).

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

3871429320 is a wasteful number, since it uses less digits than its factorization.

3871429320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68275 (or 68271 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 3871429320 is about 62220.8109879645. The cubic root of 3871429320 is about 1570.2077321246.

The spelling of 3871429320 in words is "three billion, eight hundred seventy-one million, four hundred twenty-nine thousand, three hundred twenty".