3918241 has 4 divisors (see below), whose sum is σ = 3931312. Its totient is φ = 3905172.

The previous prime is 3918209. The next prime is 3918251. The reversal of 3918241 is 1428193.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3918241 - 2⁵ = 3918209 is a prime.

It is a super-2 number, since 2×3918241² = 30705225068162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3918251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6075 + ... + 6688.

It is an arithmetic number, because the mean of its divisors is an integer number (982828).

Almost surely, 2^3918241 is an apocalyptic number.

It is an amenable number.

3918241 is a deficient number, since it is larger than the sum of its proper divisors (13071).

3918241 is a wasteful number, since it uses less digits than its factorization.

3918241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13070.

The product of its digits is 1728, while the sum is 28.

The square root of 3918241 is about 1979.4547228972. The cubic root of 3918241 is about 157.6511155667.

The spelling of 3918241 in words is "three million, nine hundred eighteen thousand, two hundred forty-one".