1398206 has 8 divisors (see below), whose sum is σ = 2169720. Its totient is φ = 674968.

The previous prime is 1398197. The next prime is 1398209. The reversal of 1398206 is 6028931.

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

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11996 + ... + 12111.

It is an arithmetic number, because the mean of its divisors is an integer number (271215).

2^1398206 is an apocalyptic number.

1398206 is a deficient number, since it is larger than the sum of its proper divisors (771514).

1398206 is a wasteful number, since it uses less digits than its factorization.

1398206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24138.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1398206 is about 1182.4576102339. The cubic root of 1398206 is about 111.8210897839.

The spelling of 1398206 in words is "one million, three hundred ninety-eight thousand, two hundred six".