11850520 has 64 divisors (see below), whose sum is σ = 30378240. Its totient is φ = 4118400.

The previous prime is 11850511. The next prime is 11850529. The reversal of 11850520 is 2505811.

It is an interprime number because it is at equal distance from previous prime (11850511) and next prime (11850529).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 11850491 and 11850500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11850529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9535 + ... + 10705.

It is an arithmetic number, because the mean of its divisors is an integer number (474660).

Almost surely, 2^11850520 is an apocalyptic number.

11850520 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 11850520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15189120).

11850520 is an abundant number, since it is smaller than the sum of its proper divisors (18527720).

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

11850520 is a wasteful number, since it uses less digits than its factorization.

11850520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216 (or 1212 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 11850520 is about 3442.4584238593. The cubic root of 11850520 is about 227.9882521904.

The spelling of 11850520 in words is "eleven million, eight hundred fifty thousand, five hundred twenty".