3918436 has 12 divisors (see below), whose sum is σ = 6871228. Its totient is φ = 1955232.

The previous prime is 3918413. The next prime is 3918443. The reversal of 3918436 is 6348193.

It can be written as a sum of positive squares in 2 ways, for example, as 1577536 + 2340900 = 1256^2 + 1530^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2950 + ... + 4066.

Almost surely, 2^3918436 is an apocalyptic number.

It is an amenable number.

3918436 is a deficient number, since it is larger than the sum of its proper divisors (2952792).

3918436 is a wasteful number, since it uses less digits than its factorization.

3918436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998 (or 1996 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 3918436 is about 1979.5039782733. The cubic root of 3918436 is about 157.6537308097.

The spelling of 3918436 in words is "three million, nine hundred eighteen thousand, four hundred thirty-six".