3402009 has 12 divisors (see below), whose sum is σ = 5292196. Its totient is φ = 2093472.

The previous prime is 3401963. The next prime is 3402013. The reversal of 3402009 is 9002043.

It can be written as a sum of positive squares in 2 ways, for example, as 1587600 + 1814409 = 1260^2 + 1347^2 .

It is not a de Polignac number, because 3402009 - 2⁸ = 3401753 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3401982 and 3402000.

It is not an unprimeable number, because it can be changed into a prime (3402079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14422 + ... + 14655.

Almost surely, 2^3402009 is an apocalyptic number.

3402009 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3402009 is a deficient number, since it is larger than the sum of its proper divisors (1890187).

3402009 is a wasteful number, since it uses less digits than its factorization.

3402009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29096 (or 29093 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3402009 is about 1844.4535776213. The cubic root of 3402009 is about 150.3990706758.

The spelling of 3402009 in words is "three million, four hundred two thousand, nine".