398210 has 8 divisors (see below), whose sum is σ = 716796. Its totient is φ = 159280.

The previous prime is 398207. The next prime is 398213. The reversal of 398210 is 12893.

It is an interprime number because it is at equal distance from previous prime (398207) and next prime (398213).

It can be written as a sum of positive squares in 2 ways, for example, as 398161 + 49 = 631^2 + 7^2 .

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

It is not an unprimeable number, because it can be changed into a prime (398213) 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, 19901 + ... + 19920.

2³⁹⁸²¹⁰ is an apocalyptic number.

398210 is a deficient number, since it is larger than the sum of its proper divisors (318586).

398210 is a wasteful number, since it uses less digits than its factorization.

398210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39828.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 398210 is about 631.0388260638. The cubic root of 398210 is about 73.5705586798.

The spelling of 398210 in words is "three hundred ninety-eight thousand, two hundred ten".