11932840 has 32 divisors (see below), whose sum is σ = 26973000. Its totient is φ = 4751104.

The previous prime is 11932829. The next prime is 11932849. The reversal of 11932840 is 4823911.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2896804 + 9036036 = 1702^2 + 3006^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11932799 and 11932808.

It is not an unprimeable number, because it can be changed into a prime (11932849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10206 + ... + 11314.

Almost surely, 2^11932840 is an apocalyptic number.

11932840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11932840 is an abundant number, since it is smaller than the sum of its proper divisors (15040160).

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

11932840 is a wasteful number, since it uses less digits than its factorization.

11932840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389 (or 1385 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 11932840 is about 3454.3943029133. The cubic root of 11932840 is about 228.5149436318.

The spelling of 11932840 in words is "eleven million, nine hundred thirty-two thousand, eight hundred forty".