11803720 has 32 divisors (see below), whose sum is σ = 26681400. Its totient is φ = 4699648.

The previous prime is 11803709. The next prime is 11803723. The reversal of 11803720 is 2730811.

It can be written as a sum of positive squares in 4 ways, for example, as 5280804 + 6522916 = 2298^2 + 2554^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11803691 and 11803700.

It is not an unprimeable number, because it can be changed into a prime (11803723) 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, 10212 + ... + 11308.

Almost surely, 2^11803720 is an apocalyptic number.

11803720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11803720 is an abundant number, since it is smaller than the sum of its proper divisors (14877680).

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

11803720 is a wasteful number, since it uses less digits than its factorization.

11803720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377 (or 1373 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 11803720 is about 3435.6542317294. The cubic root of 11803720 is about 227.6877329764.

It can be divided in two parts, 1180 and 3720, that added together give a square (4900 = 70²).

The spelling of 11803720 in words is "eleven million, eight hundred three thousand, seven hundred twenty".