11915436 has 48 divisors (see below), whose sum is σ = 31709664. Its totient is φ = 3449856.

The previous prime is 11915417. The next prime is 11915447. The reversal of 11915436 is 63451911.

11915436 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406 + ... + 4898.

It is an arithmetic number, because the mean of its divisors is an integer number (660618).

Almost surely, 2^11915436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11915436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15854832).

11915436 is an abundant number, since it is smaller than the sum of its proper divisors (19794228).

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

11915436 is a wasteful number, since it uses less digits than its factorization.

11915436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4530 (or 4528 counting only the distinct ones).

The product of its digits is 3240, while the sum is 30.

The square root of 11915436 is about 3451.8742734926. The cubic root of 11915436 is about 228.4037935294.

The spelling of 11915436 in words is "eleven million, nine hundred fifteen thousand, four hundred thirty-six".