11512380 has 48 divisors (see below), whose sum is σ = 35167104. Its totient is φ = 2790720.

The previous prime is 11512363. The next prime is 11512387. The reversal of 11512380 is 8321511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11512387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8062 + ... + 9381.

It is an arithmetic number, because the mean of its divisors is an integer number (732648).

Almost surely, 2^11512380 is an apocalyptic number.

11512380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11512380 is an abundant number, since it is smaller than the sum of its proper divisors (23654724).

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

11512380 is a wasteful number, since it uses less digits than its factorization.

11512380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17466 (or 17464 counting only the distinct ones).

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

The square root of 11512380 is about 3392.9898319918. The cubic root of 11512380 is about 225.7988394581.

Adding to 11512380 its reverse (8321511), we get a palindrome (19833891).

The spelling of 11512380 in words is "eleven million, five hundred twelve thousand, three hundred eighty".