11381250 has 48 divisors (see below), whose sum is σ = 28498176. Its totient is φ = 3030000.

The previous prime is 11381233. The next prime is 11381261. The reversal of 11381250 is 5218311.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18447 + ... + 19053.

It is an arithmetic number, because the mean of its divisors is an integer number (593712).

Almost surely, 2^11381250 is an apocalyptic number.

11381250 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 11381250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14249088).

11381250 is an abundant number, since it is smaller than the sum of its proper divisors (17116926).

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

11381250 is an frugal number, since it uses more digits than its factorization.

11381250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 11381250 is about 3373.6108252138. The cubic root of 11381250 is about 224.9382546621.

Adding to 11381250 its reverse (5218311), we get a palindrome (16599561).

The spelling of 11381250 in words is "eleven million, three hundred eighty-one thousand, two hundred fifty".