3918396 has 48 divisors (see below), whose sum is σ = 9561888. Its totient is φ = 1248000.

The previous prime is 3918391. The next prime is 3918401. The reversal of 3918396 is 6938193.

It is an interprime number because it is at equal distance from previous prime (3918391) and next prime (3918401).

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38746 + ... + 38846.

It is an arithmetic number, because the mean of its divisors is an integer number (199206).

Almost surely, 2^3918396 is an apocalyptic number.

It is an amenable number.

3918396 is an abundant number, since it is smaller than the sum of its proper divisors (5643492).

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

3918396 is a wasteful number, since it uses less digits than its factorization.

3918396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 220 counting only the distinct ones).

The product of its digits is 34992, while the sum is 39.

The square root of 3918396 is about 1979.4938747064. The cubic root of 3918396 is about 157.6531943567.

The spelling of 3918396 in words is "three million, nine hundred eighteen thousand, three hundred ninety-six".