11538812 has 12 divisors (see below), whose sum is σ = 20233080. Its totient is φ = 5757936.

The previous prime is 11538811. The next prime is 11538817. The reversal of 11538812 is 21883511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11538811) 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, 362 + ... + 4817.

It is an arithmetic number, because the mean of its divisors is an integer number (1686090).

Almost surely, 2^11538812 is an apocalyptic number.

It is an amenable number.

11538812 is a deficient number, since it is larger than the sum of its proper divisors (8694268).

11538812 is a wasteful number, since it uses less digits than its factorization.

11538812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5740 (or 5738 counting only the distinct ones).

The product of its digits is 1920, while the sum is 29.

The square root of 11538812 is about 3396.8826885838. The cubic root of 11538812 is about 225.9715159758.

The spelling of 11538812 in words is "eleven million, five hundred thirty-eight thousand, eight hundred twelve".