1398322 has 8 divisors (see below), whose sum is σ = 2169900. Its totient is φ = 675024.

The previous prime is 1398307. The next prime is 1398323. The reversal of 1398322 is 2238931.

It can be written as a sum of positive squares in 2 ways, for example, as 1390041 + 8281 = 1179^2 + 91^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1398323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11997 + ... + 12112.

2^1398322 is an apocalyptic number.

1398322 is a deficient number, since it is larger than the sum of its proper divisors (771578).

1398322 is a wasteful number, since it uses less digits than its factorization.

1398322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24140.

The product of its digits is 2592, while the sum is 28.

The square root of 1398322 is about 1182.5066596007. The cubic root of 1398322 is about 111.8241820530.

The spelling of 1398322 in words is "one million, three hundred ninety-eight thousand, three hundred twenty-two".