3407409 has 6 divisors (see below), whose sum is σ = 4921826. Its totient is φ = 2271600.

The previous prime is 3407401. The next prime is 3407431. The reversal of 3407409 is 9047043.

It can be written as a sum of positive squares in only one way, i.e., 2241009 + 1166400 = 1497^2 + 1080^2 .

It is not a de Polignac number, because 3407409 - 2³ = 3407401 is a prime.

It is a super-2 number, since 2×3407409² = 23220872186562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3407401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 189292 + ... + 189309.

Almost surely, 2^3407409 is an apocalyptic number.

It is an amenable number.

3407409 is a deficient number, since it is larger than the sum of its proper divisors (1514417).

3407409 is a wasteful number, since it uses less digits than its factorization.

3407409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378607 (or 378604 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 3407409 is about 1845.9168453644. The cubic root of 3407409 is about 150.4786046266.

The spelling of 3407409 in words is "three million, four hundred seven thousand, four hundred nine".