3935722860 has 72 divisors (see below), whose sum is σ = 11982887280. Its totient is φ = 1045611648.

The previous prime is 3935722859. The next prime is 3935722897. The reversal of 3935722860 is 682275393.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7779 + ... + 89061.

It is an arithmetic number, because the mean of its divisors is an integer number (166428990).

Almost surely, 2^3935722860 is an apocalyptic number.

3935722860 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 3935722860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5991443640).

3935722860 is an abundant number, since it is smaller than the sum of its proper divisors (8047164420).

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

3935722860 is a wasteful number, since it uses less digits than its factorization.

3935722860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81567 (or 81562 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 3935722860 is about 62735.3398014229. The cubic root of 3935722860 is about 1578.8522963563.

The spelling of 3935722860 in words is "three billion, nine hundred thirty-five million, seven hundred twenty-two thousand, eight hundred sixty".