3918424 has 8 divisors (see below), whose sum is σ = 7347060. Its totient is φ = 1959208.

The previous prime is 3918413. The next prime is 3918443. The reversal of 3918424 is 4248193.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244894 + ... + 244909.

Almost surely, 2^3918424 is an apocalyptic number.

It is an amenable number.

3918424 is a deficient number, since it is larger than the sum of its proper divisors (3428636).

3918424 is a wasteful number, since it uses less digits than its factorization.

3918424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489809 (or 489805 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 3918424 is about 1979.5009472087. The cubic root of 3918424 is about 157.6535698742.

The spelling of 3918424 in words is "three million, nine hundred eighteen thousand, four hundred twenty-four".