3970239328 has 96 divisors (see below), whose sum is σ = 8837579520. Its totient is φ = 1740111360.

The previous prime is 3970239311. The next prime is 3970239331. The reversal of 3970239328 is 8239320793.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1098901 + ... + 1102507.

It is an arithmetic number, because the mean of its divisors is an integer number (92058120).

Almost surely, 2^3970239328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3970239328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4418789760).

3970239328 is an abundant number, since it is smaller than the sum of its proper divisors (4867340192).

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

3970239328 is a wasteful number, since it uses less digits than its factorization.

3970239328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740 (or 3732 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 3970239328 is about 63009.8351688052. The cubic root of 3970239328 is about 1583.4544043141.

It can be divided in two parts, 397023 and 9328, that added together give a triangular number (406351 = T₉₀₁).

The spelling of 3970239328 in words is "three billion, nine hundred seventy million, two hundred thirty-nine thousand, three hundred twenty-eight".