3978579344 has 20 divisors (see below), whose sum is σ = 7713061020. Its totient is φ = 1988112000.

The previous prime is 3978579337. The next prime is 3978579373. The reversal of 3978579344 is 4439758793.

It can be written as a sum of positive squares in 2 ways, for example, as 2093977600 + 1884601744 = 45760^2 + 43412^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45407 + ... + 100094.

It is an arithmetic number, because the mean of its divisors is an integer number (385653051).

Almost surely, 2^3978579344 is an apocalyptic number.

It is an amenable number.

3978579344 is a deficient number, since it is larger than the sum of its proper divisors (3734481676).

3978579344 is a wasteful number, since it uses less digits than its factorization.

3978579344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147218 (or 147212 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 59.

The square root of 3978579344 is about 63075.9807216662. The cubic root of 3978579344 is about 1584.5623810835.

The spelling of 3978579344 in words is "three billion, nine hundred seventy-eight million, five hundred seventy-nine thousand, three hundred forty-four".