1219898 has 8 divisors (see below), whose sum is σ = 1838592. Its totient is φ = 607036.

The previous prime is 1219891. The next prime is 1219909. The reversal of 1219898 is 8989121.

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

It is a super-2 number, since 2×1219898² = 2976302260808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1219891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890 + ... + 1797.

It is an arithmetic number, because the mean of its divisors is an integer number (229824).

2^1219898 is an apocalyptic number.

1219898 is a deficient number, since it is larger than the sum of its proper divisors (618694).

1219898 is a wasteful number, since it uses less digits than its factorization.

1219898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916.

The product of its digits is 10368, while the sum is 38.

The square root of 1219898 is about 1104.4899275231. The cubic root of 1219898 is about 106.8499950622.

The spelling of 1219898 in words is "one million, two hundred nineteen thousand, eight hundred ninety-eight".