11297580 has 96 divisors (see below), whose sum is σ = 37180416. Its totient is φ = 2509056.

The previous prime is 11297579. The next prime is 11297593. The reversal of 11297580 is 8579211.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 15177 + ... + 15903.

It is an arithmetic number, because the mean of its divisors is an integer number (387296).

Almost surely, 2^11297580 is an apocalyptic number.

11297580 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 11297580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18590208).

11297580 is an abundant number, since it is smaller than the sum of its proper divisors (25882836).

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

11297580 is a wasteful number, since it uses less digits than its factorization.

11297580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 781 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 11297580 is about 3361.1872902295. The cubic root of 11297580 is about 224.3856822789.

The spelling of 11297580 in words is "eleven million, two hundred ninety-seven thousand, five hundred eighty".