11860840 has 32 divisors (see below), whose sum is σ = 27129960. Its totient is φ = 4665600.

The previous prime is 11860837. The next prime is 11860859. The reversal of 11860840 is 4806811.

It can be written as a sum of positive squares in 4 ways, for example, as 8964036 + 2896804 = 2994^2 + 1702^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11860799 and 11860808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10 + ... + 4870.

Almost surely, 2^11860840 is an apocalyptic number.

11860840 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 11860840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13564980).

11860840 is an abundant number, since it is smaller than the sum of its proper divisors (15269120).

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

11860840 is a wasteful number, since it uses less digits than its factorization.

11860840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4933 (or 4929 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 11860840 is about 3443.9570264450. The cubic root of 11860840 is about 228.0544140158.

The spelling of 11860840 in words is "eleven million, eight hundred sixty thousand, eight hundred forty".