1198478 has 8 divisors (see below), whose sum is σ = 1813968. Its totient is φ = 593824.

The previous prime is 1198469. The next prime is 1198481. The reversal of 1198478 is 8748911.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2426 + ... + 2877.

It is an arithmetic number, because the mean of its divisors is an integer number (226746).

2^1198478 is an apocalyptic number.

1198478 is a deficient number, since it is larger than the sum of its proper divisors (615490).

1198478 is a wasteful number, since it uses less digits than its factorization.

1198478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5418.

The product of its digits is 16128, while the sum is 38.

The square root of 1198478 is about 1094.7501998173. The cubic root of 1198478 is about 106.2209110680.

It can be divided in two parts, 11 and 98478, that added together give a palindrome (98489).

The spelling of 1198478 in words is "one million, one hundred ninety-eight thousand, four hundred seventy-eight".