11724530 has 16 divisors (see below), whose sum is σ = 21394584. Its totient is φ = 4625280.

The previous prime is 11724527. The next prime is 11724533. The reversal of 11724530 is 3542711.

It is an interprime number because it is at equal distance from previous prime (11724527) and next prime (11724533).

It can be written as a sum of positive squares in 4 ways, for example, as 6017209 + 5707321 = 2453^2 + 2389^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11724496 and 11724505.

It is not an unprimeable number, because it can be changed into a prime (11724533) 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, 7301 + ... + 8760.

Almost surely, 2^11724530 is an apocalyptic number.

11724530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11724530 is a deficient number, since it is larger than the sum of its proper divisors (9670054).

11724530 is a wasteful number, since it uses less digits than its factorization.

11724530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16141.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 11724530 is about 3424.1101033699. The cubic root of 11724530 is about 227.1774118132.

The spelling of 11724530 in words is "eleven million, seven hundred twenty-four thousand, five hundred thirty".