1198520 has 48 divisors (see below), whose sum is σ = 2880360. Its totient is φ = 448704.

The previous prime is 1198513. The next prime is 1198523. The reversal of 1198520 is 258911.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1198520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14399 + ... + 14481.

2^1198520 is an apocalyptic number.

1198520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1198520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1440180).

1198520 is an abundant number, since it is smaller than the sum of its proper divisors (1681840).

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

1198520 is a wasteful number, since it uses less digits than its factorization.

1198520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1198520 is about 1094.7693821075. The cubic root of 1198520 is about 106.2221518712. Note that the first 3 decimals are identical.

The spelling of 1198520 in words is "one million, one hundred ninety-eight thousand, five hundred twenty".