398002 has 16 divisors (see below), whose sum is σ = 662400. Its totient is φ = 177840.

The previous prime is 397981. The next prime is 398011. The reversal of 398002 is 200893.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1624 + ... + 1852.

It is an arithmetic number, because the mean of its divisors is an integer number (41400).

2³⁹⁸⁰⁰² is an apocalyptic number.

398002 is a deficient number, since it is larger than the sum of its proper divisors (264398).

398002 is a wasteful number, since it uses less digits than its factorization.

398002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 398002 is about 630.8739969281. The cubic root of 398002 is about 73.5577468959.

Adding to 398002 its reverse (200893), we get a palindrome (598895).

The spelling of 398002 in words is "three hundred ninety-eight thousand, two".