409862 has 4 divisors (see below), whose sum is σ = 614796. Its totient is φ = 204930.

The previous prime is 409861. The next prime is 409867. The reversal of 409862 is 268904.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102464 + ... + 102467.

It is an arithmetic number, because the mean of its divisors is an integer number (153699).

2⁴⁰⁹⁸⁶² is an apocalyptic number.

409862 is a deficient number, since it is larger than the sum of its proper divisors (204934).

409862 is a wasteful number, since it uses less digits than its factorization.

409862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204933.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 409862 is about 640.2046547785. The cubic root of 409862 is about 74.2812525497.

The spelling of 409862 in words is "four hundred nine thousand, eight hundred sixty-two".