1230998 has 8 divisors (see below), whose sum is σ = 1872720. Its totient is φ = 606760.

The previous prime is 1230997. The next prime is 1231001. The reversal of 1230998 is 8990321.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230997) 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, 4193 + ... + 4476.

It is an arithmetic number, because the mean of its divisors is an integer number (234090).

2^1230998 is an apocalyptic number.

1230998 is a deficient number, since it is larger than the sum of its proper divisors (641722).

1230998 is an equidigital number, since it uses as much as digits as its factorization.

1230998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8742.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1230998 is about 1109.5034925587. The cubic root of 1230998 is about 107.1730974112.

The spelling of 1230998 in words is "one million, two hundred thirty thousand, nine hundred ninety-eight".