409346 has 12 divisors (see below), whose sum is σ = 714438. Its totient is φ = 175392.

The previous prime is 409337. The next prime is 409349. The reversal of 409346 is 643904.

It can be written as a sum of positive squares in only one way, i.e., 261121 + 148225 = 511^2 + 385^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁶ + 0 + 3¹⁰ + 9³ + 4⁸ + 6⁷ .

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409349) 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, 1991 + ... + 2186.

2⁴⁰⁹³⁴⁶ is an apocalyptic number.

409346 is a deficient number, since it is larger than the sum of its proper divisors (305092).

409346 is a wasteful number, since it uses less digits than its factorization.

409346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193 (or 4186 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 409346 is about 639.8015317268. The cubic root of 409346 is about 74.2500670755.

The spelling of 409346 in words is "four hundred nine thousand, three hundred forty-six".