409498 has 4 divisors (see below), whose sum is σ = 614250. Its totient is φ = 204748.

The previous prime is 409483. The next prime is 409499. The reversal of 409498 is 894904.

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

It can be written as a sum of positive squares in only one way, i.e., 277729 + 131769 = 527^2 + 363^2 .

It is a super-2 number, since 2×409498² = 335377224008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (409499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102373 + ... + 102376.

2⁴⁰⁹⁴⁹⁸ is an apocalyptic number.

409498 is a deficient number, since it is larger than the sum of its proper divisors (204752).

409498 is a wasteful number, since it uses less digits than its factorization.

409498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204751.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 409498 is about 639.9203075384. The cubic root of 409498 is about 74.2592562159.

The spelling of 409498 in words is "four hundred nine thousand, four hundred ninety-eight".