2000398 has 4 divisors (see below), whose sum is σ = 3000600. Its totient is φ = 1000198.

The previous prime is 2000393. The next prime is 2000413. The reversal of 2000398 is 8930002.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500098 + ... + 500101.

It is an arithmetic number, because the mean of its divisors is an integer number (750150).

2^2000398 is an apocalyptic number.

2000398 is a deficient number, since it is larger than the sum of its proper divisors (1000202).

2000398 is a wasteful number, since it uses less digits than its factorization.

2000398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000201.

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

The square root of 2000398 is about 1414.3542696227. The cubic root of 2000398 is about 126.0004619115. Note that the first 3 decimals are identical.

Subtracting from 2000398 its sum of digits (22), we obtain a cube (2000376 = 126³).

The spelling of 2000398 in words is "two million, three hundred ninety-eight", and thus it is an aban number.