494209 has 9 divisors (see below), whose sum is σ = 536067. Its totient is φ = 455544.

The previous prime is 494191. The next prime is 494213. The reversal of 494209 is 902494.

494209 = 1³ + 2³ + ... + 37³.

The square root of 494209 is 703.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 442225 + 51984 = 665^2 + 228^2 .

It is not a de Polignac number, because 494209 - 2¹⁵ = 461441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494269) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13339 + ... + 13375.

It is an arithmetic number, because the mean of its divisors is an integer number (59563).

2⁴⁹⁴²⁰⁹ is an apocalyptic number.

494209 is the 703-rd square number.

494209 is the 352-nd centered octagonal number.

It is an amenable number.

494209 is a deficient number, since it is larger than the sum of its proper divisors (41858).

494209 is an equidigital number, since it uses as much as digits as its factorization.

494209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The cubic root of 494209 is about 79.0624406203.

It can be divided in two parts, 494 and 209, that added together give a triangular number (703 = T₃₇).

The spelling of 494209 in words is "four hundred ninety-four thousand, two hundred nine".