11951860 has 12 divisors (see below), whose sum is σ = 25098948. Its totient is φ = 4780736.

The previous prime is 11951837. The next prime is 11951861. The reversal of 11951860 is 6815911.

It can be written as a sum of positive squares in 2 ways, for example, as 9461776 + 2490084 = 3076^2 + 1578^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11951861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298777 + ... + 298816.

It is an arithmetic number, because the mean of its divisors is an integer number (2091579).

Almost surely, 2^11951860 is an apocalyptic number.

11951860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11951860 is an abundant number, since it is smaller than the sum of its proper divisors (13147088).

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

11951860 is a wasteful number, since it uses less digits than its factorization.

11951860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597602 (or 597600 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 11951860 is about 3457.1462219582. The cubic root of 11951860 is about 228.6362907440.

The spelling of 11951860 in words is "eleven million, nine hundred fifty-one thousand, eight hundred sixty".