1212398 has 8 divisors (see below), whose sum is σ = 1983960. Its totient is φ = 551080.

The previous prime is 1212397. The next prime is 1212401. The reversal of 1212398 is 8932121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212397) 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, 27533 + ... + 27576.

It is an arithmetic number, because the mean of its divisors is an integer number (247995).

2^1212398 is an apocalyptic number.

1212398 is a deficient number, since it is larger than the sum of its proper divisors (771562).

1212398 is a wasteful number, since it uses less digits than its factorization.

1212398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55122.

The product of its digits is 864, while the sum is 26.

The square root of 1212398 is about 1101.0894604890. The cubic root of 1212398 is about 106.6305715545.

It can be divided in two parts, 12123 and 98, that added together give a palindrome (12221).

The spelling of 1212398 in words is "one million, two hundred twelve thousand, three hundred ninety-eight".