398494 has 4 divisors (see below), whose sum is σ = 597744. Its totient is φ = 199246.

The previous prime is 398491. The next prime is 398509. The reversal of 398494 is 494893.

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 (398491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99622 + ... + 99625.

It is an arithmetic number, because the mean of its divisors is an integer number (149436).

2³⁹⁸⁴⁹⁴ is an apocalyptic number.

398494 is a deficient number, since it is larger than the sum of its proper divisors (199250).

398494 is a wasteful number, since it uses less digits than its factorization.

398494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199249.

The product of its digits is 31104, while the sum is 37.

The square root of 398494 is about 631.2638117301. The cubic root of 398494 is about 73.5880444900.

The spelling of 398494 in words is "three hundred ninety-eight thousand, four hundred ninety-four".