11711380 has 12 divisors (see below), whose sum is σ = 24593940. Its totient is φ = 4684544.

The previous prime is 11711377. The next prime is 11711407. The reversal of 11711380 is 8311711.

11711380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4334724 + 7376656 = 2082^2 + 2716^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292765 + ... + 292804.

It is an arithmetic number, because the mean of its divisors is an integer number (2049495).

Almost surely, 2^11711380 is an apocalyptic number.

11711380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11711380 is an abundant number, since it is smaller than the sum of its proper divisors (12882560).

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

11711380 is a wasteful number, since it uses less digits than its factorization.

11711380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585578 (or 585576 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 22.

The square root of 11711380 is about 3422.1893577066. The cubic root of 11711380 is about 227.0924474828.

The spelling of 11711380 in words is "eleven million, seven hundred eleven thousand, three hundred eighty".