11855472 has 40 divisors (see below), whose sum is σ = 31136400. Its totient is φ = 3886080.

The previous prime is 11855413. The next prime is 11855489. The reversal of 11855472 is 27455811.

11855472 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904 + ... + 4952.

It is an arithmetic number, because the mean of its divisors is an integer number (778410).

Almost surely, 2^11855472 is an apocalyptic number.

11855472 is a gapful number since it is divisible by the number (12) 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 11855472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15568200).

11855472 is an abundant number, since it is smaller than the sum of its proper divisors (19280928).

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

11855472 is a wasteful number, since it uses less digits than its factorization.

11855472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121 (or 4115 counting only the distinct ones).

The product of its digits is 11200, while the sum is 33.

The square root of 11855472 is about 3443.1776021576. The cubic root of 11855472 is about 228.0200044005.

The spelling of 11855472 in words is "eleven million, eight hundred fifty-five thousand, four hundred seventy-two".