398474 has 8 divisors (see below), whose sum is σ = 617088. Its totient is φ = 192780.

The previous prime is 398473. The next prime is 398477. The reversal of 398474 is 474893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 398474.

It is not an unprimeable number, because it can be changed into a prime (398471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3152 + ... + 3275.

It is an arithmetic number, because the mean of its divisors is an integer number (77136).

2³⁹⁸⁴⁷⁴ is an apocalyptic number.

398474 is a deficient number, since it is larger than the sum of its proper divisors (218614).

398474 is a wasteful number, since it uses less digits than its factorization.

398474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6460.

The product of its digits is 24192, while the sum is 35.

The square root of 398474 is about 631.2479702938. The cubic root of 398474 is about 73.5868133669.

The spelling of 398474 in words is "three hundred ninety-eight thousand, four hundred seventy-four".