11798538 has 32 divisors (see below), whose sum is σ = 24552960. Its totient is φ = 3775680.

The previous prime is 11798519. The next prime is 11798539. The reversal of 11798538 is 83589711.

It is a self number, because there is not a number n which added to its sum of digits gives 11798538.

It is not an unprimeable number, because it can be changed into a prime (11798539) 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 15 ways as a sum of consecutive naturals, for example, 42456 + ... + 42732.

It is an arithmetic number, because the mean of its divisors is an integer number (767280).

Almost surely, 2^11798538 is an apocalyptic number.

11798538 is an abundant number, since it is smaller than the sum of its proper divisors (12754422).

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

11798538 is a wasteful number, since it uses less digits than its factorization.

11798538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542.

The product of its digits is 60480, while the sum is 42.

The square root of 11798538 is about 3434.8999985444. The cubic root of 11798538 is about 227.6544087211.

The spelling of 11798538 in words is "eleven million, seven hundred ninety-eight thousand, five hundred thirty-eight".