3917242 has 32 divisors (see below), whose sum is σ = 7223040. Its totient is φ = 1555200.

The previous prime is 3917209. The next prime is 3917261. The reversal of 3917242 is 2427193.

It is a self number, because there is not a number n which added to its sum of digits gives 3917242.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25867 + ... + 26017.

It is an arithmetic number, because the mean of its divisors is an integer number (225720).

Almost surely, 2^3917242 is an apocalyptic number.

3917242 is a deficient number, since it is larger than the sum of its proper divisors (3305798).

3917242 is a wasteful number, since it uses less digits than its factorization.

3917242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286.

The product of its digits is 3024, while the sum is 28.

The square root of 3917242 is about 1979.2023645903. The cubic root of 3917242 is about 157.6377161143.

The spelling of 3917242 in words is "three million, nine hundred seventeen thousand, two hundred forty-two".