11870540 has 48 divisors (see below), whose sum is σ = 27578880. Its totient is φ = 4255680.

The previous prime is 11870503. The next prime is 11870587. The reversal of 11870540 is 4507811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17039 + ... + 17721.

It is an arithmetic number, because the mean of its divisors is an integer number (574560).

Almost surely, 2^11870540 is an apocalyptic number.

11870540 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 11870540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13789440).

11870540 is an abundant number, since it is smaller than the sum of its proper divisors (15708340).

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

11870540 is a wasteful number, since it uses less digits than its factorization.

11870540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 11870540 is about 3445.3650024344. The cubic root of 11870540 is about 228.1165660233.

The spelling of 11870540 in words is "eleven million, eight hundred seventy thousand, five hundred forty".