11478520 has 32 divisors (see below), whose sum is σ = 26187120. Its totient is φ = 4527360.

The previous prime is 11478517. The next prime is 11478529. The reversal of 11478520 is 2587411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11478529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 955 + ... + 4885.

Almost surely, 2^11478520 is an apocalyptic number.

11478520 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 11478520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13093560).

11478520 is an abundant number, since it is smaller than the sum of its proper divisors (14708600).

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

11478520 is a wasteful number, since it uses less digits than its factorization.

11478520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015 (or 4011 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 11478520 is about 3387.9964580855. The cubic root of 11478520 is about 225.5772502754.

The spelling of 11478520 in words is "eleven million, four hundred seventy-eight thousand, five hundred twenty".