3918390412 has 6 divisors (see below), whose sum is σ = 6857183228. Its totient is φ = 1959195204.

The previous prime is 3918390407. The next prime is 3918390431. The reversal of 3918390412 is 2140938193.

3918390412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489798798 + ... + 489798805.

Almost surely, 2^3918390412 is an apocalyptic number.

It is an amenable number.

3918390412 is a deficient number, since it is larger than the sum of its proper divisors (2938792816).

3918390412 is a wasteful number, since it uses less digits than its factorization.

3918390412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979597607 (or 979597605 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 3918390412 is about 62597.0479495639. The cubic root of 3918390412 is about 1576.5311941393.

The spelling of 3918390412 in words is "three billion, nine hundred eighteen million, three hundred ninety thousand, four hundred twelve".