11799940 has 12 divisors (see below), whose sum is σ = 24779916. Its totient is φ = 4719968.

The previous prime is 11799919. The next prime is 11799979. The reversal of 11799940 is 4999711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4734976 + 7064964 = 2176^2 + 2658^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11799893 and 11799902.

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, 294979 + ... + 295018.

It is an arithmetic number, because the mean of its divisors is an integer number (2064993).

Almost surely, 2^11799940 is an apocalyptic number.

11799940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11799940 is an abundant number, since it is smaller than the sum of its proper divisors (12979976).

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

11799940 is a wasteful number, since it uses less digits than its factorization.

11799940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590006 (or 590004 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 11799940 is about 3435.1040741148. The cubic root of 11799940 is about 227.6634256247.

The spelling of 11799940 in words is "eleven million, seven hundred ninety-nine thousand, nine hundred forty".