3871932240 has 640 divisors, whose sum is σ = 15057321984. Its totient is φ = 817766400.

The previous prime is 3871932227. The next prime is 3871932277. The reversal of 3871932240 is 422391783.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 124901025 + ... + 124901055.

Almost surely, 2^3871932240 is an apocalyptic number.

3871932240 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 3871932240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7528660992).

3871932240 is an abundant number, since it is smaller than the sum of its proper divisors (11185389744).

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

3871932240 is a wasteful number, since it uses less digits than its factorization.

3871932240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 92 counting only the distinct ones).

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

The square root of 3871932240 is about 62224.8522698126. The cubic root of 3871932240 is about 1570.2757220594.

The spelling of 3871932240 in words is "three billion, eight hundred seventy-one million, nine hundred thirty-two thousand, two hundred forty".