11523938 has 8 divisors (see below), whose sum is σ = 17330220. Its totient is φ = 5747200.

The previous prime is 11523931. The next prime is 11523959. The reversal of 11523938 is 83932511.

It can be written as a sum of positive squares in 2 ways, for example, as 9815689 + 1708249 = 3133^2 + 1307^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11523938² = 265602294055688, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11523931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6383 + ... + 7986.

Almost surely, 2^11523938 is an apocalyptic number.

11523938 is a deficient number, since it is larger than the sum of its proper divisors (5806282).

11523938 is a wasteful number, since it uses less digits than its factorization.

11523938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14772.

The product of its digits is 6480, while the sum is 32.

The square root of 11523938 is about 3394.6926223150. The cubic root of 11523938 is about 225.8743787210.

The spelling of 11523938 in words is "eleven million, five hundred twenty-three thousand, nine hundred thirty-eight".