3970157328 has 160 divisors (see below), whose sum is σ = 12040538880. Its totient is φ = 1265590656.

The previous prime is 3970157311. The next prime is 3970157353. The reversal of 3970157328 is 8237510793.

It is a happy number.

3970157328 is a `hidden beast` number, since 3 + 9 + 70 + 1 + 573 + 2 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 802350 + ... + 807282.

It is an arithmetic number, because the mean of its divisors is an integer number (75253368).

Almost surely, 2^3970157328 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 3970157328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6020269440).

3970157328 is an abundant number, since it is smaller than the sum of its proper divisors (8070381552).

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

3970157328 is an equidigital number, since it uses as much as digits as its factorization.

3970157328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4985 (or 4961 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 3970157328 is about 63009.1844733766. The cubic root of 3970157328 is about 1583.4435028592.

The spelling of 3970157328 in words is "three billion, nine hundred seventy million, one hundred fifty-seven thousand, three hundred twenty-eight".