11523860 has 12 divisors (see below), whose sum is σ = 24200148. Its totient is φ = 4609536.

The previous prime is 11523857. The next prime is 11523877. The reversal of 11523860 is 6832511.

It can be written as a sum of positive squares in 2 ways, for example, as 3928324 + 7595536 = 1982^2 + 2756^2 .

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, 288077 + ... + 288116.

It is an arithmetic number, because the mean of its divisors is an integer number (2016679).

Almost surely, 2^11523860 is an apocalyptic number.

11523860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11523860 is an abundant number, since it is smaller than the sum of its proper divisors (12676288).

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

11523860 is a wasteful number, since it uses less digits than its factorization.

11523860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576202 (or 576200 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 11523860 is about 3394.6811337738. The cubic root of 11523860 is about 225.8738691081.

The spelling of 11523860 in words is "eleven million, five hundred twenty-three thousand, eight hundred sixty".