11519898 has 32 divisors (see below), whose sum is σ = 25050816. Its totient is φ = 3510528.

The previous prime is 11519891. The next prime is 11519899. The reversal of 11519898 is 89891511.

It is not an unprimeable number, because it can be changed into a prime (11519891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8161 + ... + 9467.

It is an arithmetic number, because the mean of its divisors is an integer number (782838).

Almost surely, 2^11519898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11519898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12525408).

11519898 is an abundant number, since it is smaller than the sum of its proper divisors (13530918).

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

11519898 is a wasteful number, since it uses less digits than its factorization.

11519898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438.

The product of its digits is 25920, while the sum is 42.

The square root of 11519898 is about 3394.0975236431. The cubic root of 11519898 is about 225.8479803623.

The spelling of 11519898 in words is "eleven million, five hundred nineteen thousand, eight hundred ninety-eight".