3945745416 has 64 divisors (see below), whose sum is σ = 10143993600. Its totient is φ = 1278056448.

The previous prime is 3945745393. The next prime is 3945745429. The reversal of 3945745416 is 6145475493.

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, 822561 + ... + 827343.

It is an arithmetic number, because the mean of its divisors is an integer number (158499900).

Almost surely, 2^3945745416 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 3945745416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5071996800).

3945745416 is an abundant number, since it is smaller than the sum of its proper divisors (6198248184).

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

3945745416 is a wasteful number, since it uses less digits than its factorization.

3945745416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5758 (or 5754 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 48.

The square root of 3945745416 is about 62815.1686776371. The cubic root of 3945745416 is about 1580.1913745653.

The spelling of 3945745416 in words is "three billion, nine hundred forty-five million, seven hundred forty-five thousand, four hundred sixteen".