3968218252 has 6 divisors (see below), whose sum is σ = 6944381948. Its totient is φ = 1984109124.

The previous prime is 3968218249. The next prime is 3968218253. The reversal of 3968218252 is 2528128693.

It is not an unprimeable number, because it can be changed into a prime (3968218253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496027278 + ... + 496027285.

Almost surely, 2^3968218252 is an apocalyptic number.

It is an amenable number.

3968218252 is a deficient number, since it is larger than the sum of its proper divisors (2976163696).

3968218252 is a wasteful number, since it uses less digits than its factorization.

3968218252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992054567 (or 992054565 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The square root of 3968218252 is about 62993.7953452560. The cubic root of 3968218252 is about 1583.1856694744.

The spelling of 3968218252 in words is "three billion, nine hundred sixty-eight million, two hundred eighteen thousand, two hundred fifty-two".