398241 has 6 divisors (see below), whose sum is σ = 575250. Its totient is φ = 265488.

The previous prime is 398227. The next prime is 398249. The reversal of 398241 is 142893.

It can be written as a sum of positive squares in only one way, i.e., 221841 + 176400 = 471^2 + 420^2 .

It is not a de Polignac number, because 398241 - 2⁷ = 398113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (398249) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22116 + ... + 22133.

It is an arithmetic number, because the mean of its divisors is an integer number (95875).

2³⁹⁸²⁴¹ is an apocalyptic number.

It is an amenable number.

398241 is a deficient number, since it is larger than the sum of its proper divisors (177009).

398241 is a wasteful number, since it uses less digits than its factorization.

398241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44255 (or 44252 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 398241 is about 631.0633882583. The cubic root of 398241 is about 73.5724677463.

The spelling of 398241 in words is "three hundred ninety-eight thousand, two hundred forty-one".