11726730 has 48 divisors (see below), whose sum is σ = 31547880. Its totient is φ = 3018624.

The previous prime is 11726723. The next prime is 11726731. The reversal of 11726730 is 3762711.

It can be written as a sum of positive squares in 4 ways, for example, as 11634921 + 91809 = 3411^2 + 303^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11726694 and 11726703.

It is not an unprimeable number, because it can be changed into a prime (11726731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 364 + ... + 4856.

Almost surely, 2^11726730 is an apocalyptic number.

11726730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11726730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15773940).

11726730 is an abundant number, since it is smaller than the sum of its proper divisors (19821150).

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

11726730 is a wasteful number, since it uses less digits than its factorization.

11726730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4535 (or 4532 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 11726730 is about 3424.4313396533. The cubic root of 11726730 is about 227.1916201738.

The spelling of 11726730 in words is "eleven million, seven hundred twenty-six thousand, seven hundred thirty".