409398 has 16 divisors (see below), whose sum is σ = 893376. Its totient is φ = 124040.

The previous prime is 409397. The next prime is 409429. The reversal of 409398 is 893904.

409398 is nontrivially palindromic in base 16.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3036 + ... + 3167.

It is an arithmetic number, because the mean of its divisors is an integer number (55836).

2⁴⁰⁹³⁹⁸ is an apocalyptic number.

409398 is an abundant number, since it is smaller than the sum of its proper divisors (483978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409398 is a wasteful number, since it uses less digits than its factorization.

409398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6219.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 409398 is about 639.8421680383. The cubic root of 409398 is about 74.2532109847.

The spelling of 409398 in words is "four hundred nine thousand, three hundred ninety-eight".