398449 has 8 divisors (see below), whose sum is σ = 427040. Its totient is φ = 370656.

The previous prime is 398441. The next prime is 398459. The reversal of 398449 is 944893.

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

It is a cyclic number.

It is not a de Polignac number, because 398449 - 2³ = 398441 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (398441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117 + ... + 1429.

It is an arithmetic number, because the mean of its divisors is an integer number (53380).

2³⁹⁸⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

398449 is a deficient number, since it is larger than the sum of its proper divisors (28591).

398449 is a wasteful number, since it uses less digits than its factorization.

398449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399.

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

The square root of 398449 is about 631.2281679393. The cubic root of 398449 is about 73.5852744051.

The spelling of 398449 in words is "three hundred ninety-eight thousand, four hundred forty-nine".