3318401 has 4 divisors (see below), whose sum is σ = 3326400. Its totient is φ = 3310404.

The previous prime is 3318389. The next prime is 3318409. The reversal of 3318401 is 1048133.

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 a de Polignac number, because none of the positive numbers 2^k-3318401 is a prime.

It is a super-2 number, since 2×3318401² = 22023570393602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3318409) 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, 3341 + ... + 4218.

It is an arithmetic number, because the mean of its divisors is an integer number (831600).

Almost surely, 2^3318401 is an apocalyptic number.

It is an amenable number.

3318401 is a deficient number, since it is larger than the sum of its proper divisors (7999).

3318401 is an equidigital number, since it uses as much as digits as its factorization.

3318401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7998.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 3318401 is about 1821.6478803545. The cubic root of 3318401 is about 149.1567648758.

The spelling of 3318401 in words is "three million, three hundred eighteen thousand, four hundred one".