11724390 has 96 divisors (see below), whose sum is σ = 33022080. Its totient is φ = 2875392.

The previous prime is 11724371. The next prime is 11724413. The reversal of 11724390 is 9342711.

It is a super-2 number, since 2×11724390² = 274922641744200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120822 + ... + 120918.

It is an arithmetic number, because the mean of its divisors is an integer number (343980).

Almost surely, 2^11724390 is an apocalyptic number.

11724390 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 11724390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16511040).

11724390 is an abundant number, since it is smaller than the sum of its proper divisors (21297690).

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

11724390 is a wasteful number, since it uses less digits than its factorization.

11724390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 11724390 is about 3424.0896600410. The cubic root of 11724390 is about 227.1765075847.

The spelling of 11724390 in words is "eleven million, seven hundred twenty-four thousand, three hundred ninety".