3390845 has 4 divisors (see below), whose sum is σ = 4069020. Its totient is φ = 2712672.

The previous prime is 3390839. The next prime is 3390847. The reversal of 3390845 is 5480933.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 605284 + 2785561 = 778^2 + 1669^2 .

It is a cyclic number.

It is not a de Polignac number, because 3390845 - 2⁸ = 3390589 is a prime.

It is a super-2 number, since 2×3390845² = 22995659628050, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3390847) 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, 339080 + ... + 339089.

It is an arithmetic number, because the mean of its divisors is an integer number (1017255).

Almost surely, 2^3390845 is an apocalyptic number.

It is an amenable number.

3390845 is a deficient number, since it is larger than the sum of its proper divisors (678175).

3390845 is an equidigital number, since it uses as much as digits as its factorization.

3390845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678174.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 3390845 is about 1841.4247201556. The cubic root of 3390845 is about 150.2343743411.

The spelling of 3390845 in words is "three million, three hundred ninety thousand, eight hundred forty-five".