3968397340 has 12 divisors (see below), whose sum is σ = 8333634456. Its totient is φ = 1587358928.

The previous prime is 3968397281. The next prime is 3968397379. The reversal of 3968397340 is 437938693.

It is a congruent number.

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, 99209914 + ... + 99209953.

It is an arithmetic number, because the mean of its divisors is an integer number (694469538).

Almost surely, 2^3968397340 is an apocalyptic number.

It is an amenable number.

3968397340 is an abundant number, since it is smaller than the sum of its proper divisors (4365237116).

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

3968397340 is a wasteful number, since it uses less digits than its factorization.

3968397340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198419876 (or 198419874 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 52.

The square root of 3968397340 is about 62995.2168025478. The cubic root of 3968397340 is about 1583.2094858131.

The spelling of 3968397340 in words is "three billion, nine hundred sixty-eight million, three hundred ninety-seven thousand, three hundred forty".