11491260 has 96 divisors (see below), whose sum is σ = 36675072. Its totient is φ = 2661120.

The previous prime is 11491243. The next prime is 11491307. The reversal of 11491260 is 6219411.

11491260 = 1195² + 1196² + ... + 1202².

It is a self number, because there is not a number n which added to its sum of digits gives 11491260.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14802 + ... + 15558.

It is an arithmetic number, because the mean of its divisors is an integer number (382032).

Almost surely, 2^11491260 is an apocalyptic number.

11491260 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 11491260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18337536).

11491260 is an abundant number, since it is smaller than the sum of its proper divisors (25183812).

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

11491260 is a wasteful number, since it uses less digits than its factorization.

11491260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 11491260 is about 3389.8761039306. The cubic root of 11491260 is about 225.6606754207.

The spelling of 11491260 in words is "eleven million, four hundred ninety-one thousand, two hundred sixty".