11838730 has 16 divisors (see below), whose sum is σ = 21405384. Its totient is φ = 4714240.

The previous prime is 11838727. The next prime is 11838737. The reversal of 11838730 is 3783811.

It can be written as a sum of positive squares in 4 ways, for example, as 5442889 + 6395841 = 2333^2 + 2529^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11838692 and 11838701.

It is not an unprimeable number, because it can be changed into a prime (11838737) 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, 211 + ... + 4870.

Almost surely, 2^11838730 is an apocalyptic number.

11838730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11838730 is a deficient number, since it is larger than the sum of its proper divisors (9566654).

11838730 is a wasteful number, since it uses less digits than its factorization.

11838730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 11838730 is about 3440.7455587416. The cubic root of 11838730 is about 227.9126191267.

The spelling of 11838730 in words is "eleven million, eight hundred thirty-eight thousand, seven hundred thirty".