3945671352 has 160 divisors (see below), whose sum is σ = 12670732800. Its totient is φ = 1123730496.

The previous prime is 3945671333. The next prime is 3945671393. The reversal of 3945671352 is 2531765493.

3945671352 is a `hidden beast` number, since 39 + 4 + 567 + 1 + 3 + 52 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 3945671298 and 3945671307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1627213 + ... + 1629635.

It is an arithmetic number, because the mean of its divisors is an integer number (79192080).

Almost surely, 2^3945671352 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 3945671352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6335366400).

3945671352 is an abundant number, since it is smaller than the sum of its proper divisors (8725061448).

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

3945671352 is a wasteful number, since it uses less digits than its factorization.

3945671352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807 (or 2794 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 3945671352 is about 62814.5791357389. The cubic root of 3945671352 is about 1580.1814874579.

The spelling of 3945671352 in words is "three billion, nine hundred forty-five million, six hundred seventy-one thousand, three hundred fifty-two".