1398219 has 4 divisors (see below), whose sum is σ = 1864296. Its totient is φ = 932144.

The previous prime is 1398217. The next prime is 1398227. The reversal of 1398219 is 9128931.

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

It is a cyclic number.

It is not a de Polignac number, because 1398219 - 2¹ = 1398217 is a prime.

It is a super-2 number, since 2×1398219² = 3910032743922, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1398219.

It is not an unprimeable number, because it can be changed into a prime (1398211) 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, 233034 + ... + 233039.

It is an arithmetic number, because the mean of its divisors is an integer number (466074).

2^1398219 is an apocalyptic number.

1398219 is a deficient number, since it is larger than the sum of its proper divisors (466077).

1398219 is an equidigital number, since it uses as much as digits as its factorization.

1398219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466076.

The product of its digits is 3888, while the sum is 33.

The square root of 1398219 is about 1182.4631072469. The cubic root of 1398219 is about 111.8214363398.

The spelling of 1398219 in words is "one million, three hundred ninety-eight thousand, two hundred nineteen".