3320381 has 2 divisors, whose sum is σ = 3320382. Its totient is φ = 3320380.

The previous prime is 3320377. The next prime is 3320431. The reversal of 3320381 is 1830233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3204100 + 116281 = 1790^2 + 341^2 .

It is a cyclic number.

It is not a de Polignac number, because 3320381 - 2² = 3320377 is a prime.

It is a super-2 number, since 2×3320381² = 22049859970322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3320311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660190 + 1660191.

It is an arithmetic number, because the mean of its divisors is an integer number (1660191).

Almost surely, 2^3320381 is an apocalyptic number.

It is an amenable number.

3320381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3320381 is an equidigital number, since it uses as much as digits as its factorization.

3320381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3320381 is about 1822.1912632871. The cubic root of 3320381 is about 149.1864249114.

The spelling of 3320381 in words is "three million, three hundred twenty thousand, three hundred eighty-one".