409874 has 8 divisors (see below), whose sum is σ = 618240. Its totient is φ = 203796.

The previous prime is 409867. The next prime is 409879. The reversal of 409874 is 478904.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 409874.

It is not an unprimeable number, because it can be changed into a prime (409879) by changing a digit.

409874 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14 + ... + 905.

It is an arithmetic number, because the mean of its divisors is an integer number (77280).

2⁴⁰⁹⁸⁷⁴ is an apocalyptic number.

409874 is a deficient number, since it is larger than the sum of its proper divisors (208366).

409874 is a wasteful number, since it uses less digits than its factorization.

409874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 409874 is about 640.2140267129. The cubic root of 409874 is about 74.2819774818.

The spelling of 409874 in words is "four hundred nine thousand, eight hundred seventy-four".