398144 has 14 divisors (see below), whose sum is σ = 790194. Its totient is φ = 199040.

The previous prime is 398143. The next prime is 398149. The reversal of 398144 is 441893.

It can be written as a sum of positive squares in only one way, i.e., 238144 + 160000 = 488^2 + 400^2 .

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 398144.

It is not an unprimeable number, because it can be changed into a prime (398143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3047 + ... + 3174.

2³⁹⁸¹⁴⁴ is an apocalyptic number.

It is an amenable number.

398144 is a deficient number, since it is larger than the sum of its proper divisors (392050).

398144 is an equidigital number, since it uses as much as digits as its factorization.

398144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6233 (or 6223 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 398144 is about 630.9865291748. The cubic root of 398144 is about 73.5664938855.

The spelling of 398144 in words is "three hundred ninety-eight thousand, one hundred forty-four".