11738538 has 36 divisors (see below), whose sum is σ = 29588130. Its totient is φ = 3353616.

The previous prime is 11738471. The next prime is 11738539. The reversal of 11738538 is 83583711.

11738538 is a `hidden beast` number, since 117 + 3 + 8 + 538 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11716929 + 21609 = 3423^2 + 147^2 .

It is not an unprimeable number, because it can be changed into a prime (11738539) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 5773 + ... + 7536.

Almost surely, 2^11738538 is an apocalyptic number.

11738538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11738538 is an abundant number, since it is smaller than the sum of its proper divisors (17849592).

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

11738538 is a wasteful number, since it uses less digits than its factorization.

11738538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13331 (or 13321 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 11738538 is about 3426.1549877377. The cubic root of 11738538 is about 227.2678499705.

The spelling of 11738538 in words is "eleven million, seven hundred thirty-eight thousand, five hundred thirty-eight".