3918990976 has 64 divisors (see below), whose sum is σ = 8262000000. Its totient is φ = 1847802880.

The previous prime is 3918990973. The next prime is 3918990979. The reversal of 3918990976 is 6790998193.

It is an interprime number because it is at equal distance from previous prime (3918990973) and next prime (3918990979).

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (3918990973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199650 + ... + 218398.

It is an arithmetic number, because the mean of its divisors is an integer number (129093750).

Almost surely, 2^3918990976 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 3918990976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4131000000).

3918990976 is an abundant number, since it is smaller than the sum of its proper divisors (4343009024).

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

3918990976 is a wasteful number, since it uses less digits than its factorization.

3918990976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18857 (or 18845 counting only the distinct ones).

The product of its (nonzero) digits is 6613488, while the sum is 61.

The square root of 3918990976 is about 62601.8448290464. The cubic root of 3918990976 is about 1576.6117339709.

The spelling of 3918990976 in words is "three billion, nine hundred eighteen million, nine hundred ninety thousand, nine hundred seventy-six".