409475 has 12 divisors (see below), whose sum is σ = 554280. Its totient is φ = 297600.

The previous prime is 409471. The next prime is 409477. The reversal of 409475 is 574904.

It is not a de Polignac number, because 409475 - 2² = 409471 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (409471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 470 + ... + 1019.

It is an arithmetic number, because the mean of its divisors is an integer number (46190).

2⁴⁰⁹⁴⁷⁵ is an apocalyptic number.

409475 is a deficient number, since it is larger than the sum of its proper divisors (144805).

409475 is a wasteful number, since it uses less digits than its factorization.

409475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510 (or 1505 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 409475 is about 639.9023362983. The cubic root of 409475 is about 74.2578658998.

The spelling of 409475 in words is "four hundred nine thousand, four hundred seventy-five".