3290405 has 8 divisors (see below), whose sum is σ = 3960600. Its totient is φ = 2624256.

The previous prime is 3290389. The next prime is 3290411. The reversal of 3290405 is 5040923.

It can be written as a sum of positive squares in 4 ways, for example, as 1965604 + 1324801 = 1402^2 + 1151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3290405 - 2⁴ = 3290389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1241 + ... + 2849.

It is an arithmetic number, because the mean of its divisors is an integer number (495075).

Almost surely, 2^3290405 is an apocalyptic number.

It is an amenable number.

3290405 is a deficient number, since it is larger than the sum of its proper divisors (670195).

3290405 is a wasteful number, since it uses less digits than its factorization.

3290405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 3290405 is about 1813.9473531500. The cubic root of 3290405 is about 148.7361213895.

The spelling of 3290405 in words is "three million, two hundred ninety thousand, four hundred five".