3378409 has 4 divisors (see below), whose sum is σ = 3556240. Its totient is φ = 3200580.

The previous prime is 3378391. The next prime is 3378439. The reversal of 3378409 is 9048733.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9048733 = 181 ⋅49993.

It is a cyclic number.

It is not a de Polignac number, because 3378409 - 2⁵ = 3378377 is a prime.

It is a super-2 number, since 2×3378409² = 22827294742562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3378439) 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, 88887 + ... + 88924.

It is an arithmetic number, because the mean of its divisors is an integer number (889060).

Almost surely, 2^3378409 is an apocalyptic number.

It is an amenable number.

3378409 is a deficient number, since it is larger than the sum of its proper divisors (177831).

3378409 is a wasteful number, since it uses less digits than its factorization.

3378409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177830.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 3378409 is about 1838.0448851973. The cubic root of 3378409 is about 150.0504867091.

The spelling of 3378409 in words is "three million, three hundred seventy-eight thousand, four hundred nine".