409546 has 8 divisors (see below), whose sum is σ = 618084. Its totient is φ = 203520.

The previous prime is 409543. The next prime is 409573. The reversal of 409546 is 645904.

409546 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 408321 + 1225 = 639^2 + 35^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×409546² = 335455852232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (409543) 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, 145 + ... + 916.

2⁴⁰⁹⁵⁴⁶ is an apocalyptic number.

409546 is a deficient number, since it is larger than the sum of its proper divisors (208538).

409546 is a wasteful number, since it uses less digits than its factorization.

409546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 409546 is about 639.9578111095. The cubic root of 409546 is about 74.2621575772.

The spelling of 409546 in words is "four hundred nine thousand, five hundred forty-six".