11720250 has 48 divisors (see below), whose sum is σ = 31697640. Its totient is φ = 3124800.

The previous prime is 11720197. The next prime is 11720251. The reversal of 11720250 is 5202711.

It can be written as a sum of positive squares in 4 ways, for example, as 7144929 + 4575321 = 2673^2 + 2139^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (11720251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 355 + ... + 4854.

Almost surely, 2^11720250 is an apocalyptic number.

11720250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11720250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15848820).

11720250 is an abundant number, since it is smaller than the sum of its proper divisors (19977390).

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

11720250 is a wasteful number, since it uses less digits than its factorization.

11720250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5232 (or 5219 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 11720250 is about 3423.4850664199. The cubic root of 11720250 is about 227.1497650004.

Adding to 11720250 its reverse (5202711), we get a palindrome (16922961).

The spelling of 11720250 in words is "eleven million, seven hundred twenty thousand, two hundred fifty".