3989943270 has 48 divisors (see below), whose sum is σ = 10594584000. Its totient is φ = 1041345792.

The previous prime is 3989943259. The next prime is 3989943277. The reversal of 3989943270 is 723499893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989943277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 467395 + ... + 475854.

It is an arithmetic number, because the mean of its divisors is an integer number (220720500).

Almost surely, 2^3989943270 is an apocalyptic number.

3989943270 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3989943270 is an abundant number, since it is smaller than the sum of its proper divisors (6604640730).

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

3989943270 is a wasteful number, since it uses less digits than its factorization.

3989943270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943309 (or 943306 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The square root of 3989943270 is about 63165.9977361238. The cubic root of 3989943270 is about 1586.0695968552.

The spelling of 3989943270 in words is "three billion, nine hundred eighty-nine million, nine hundred forty-three thousand, two hundred seventy".