3918398 has 16 divisors (see below), whose sum is σ = 6789744. Its totient is φ = 1676160.

The previous prime is 3918391. The next prime is 3918401. The reversal of 3918398 is 8938193.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3918391) 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, 4865 + ... + 5612.

It is an arithmetic number, because the mean of its divisors is an integer number (424359).

Almost surely, 2^3918398 is an apocalyptic number.

3918398 is a deficient number, since it is larger than the sum of its proper divisors (2871346).

3918398 is a wasteful number, since it uses less digits than its factorization.

3918398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10507.

The product of its digits is 46656, while the sum is 41.

The square root of 3918398 is about 1979.4943798859. The cubic root of 3918398 is about 157.6532211794.

The spelling of 3918398 in words is "three million, nine hundred eighteen thousand, three hundred ninety-eight".