1198626 has 48 divisors (see below), whose sum is σ = 2860032. Its totient is φ = 332640.

The previous prime is 1198621. The next prime is 1198643. The reversal of 1198626 is 6268911.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1198621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9375 + ... + 9501.

It is an arithmetic number, because the mean of its divisors is an integer number (59584).

2^1198626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1198626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1430016).

1198626 is an abundant number, since it is smaller than the sum of its proper divisors (1661406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1198626 is a wasteful number, since it uses less digits than its factorization.

1198626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 156 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 1198626 is about 1094.8177930596. The cubic root of 1198626 is about 106.2252832933.

The spelling of 1198626 in words is "one million, one hundred ninety-eight thousand, six hundred twenty-six".