1213826852 has 12 divisors (see below), whose sum is σ = 2427653760. Its totient is φ = 520211496.

The previous prime is 1213826851. The next prime is 1213826857. The reversal of 1213826852 is 2586283121.

1213826852 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1213826851) 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, 21675452 + ... + 21675507.

It is an arithmetic number, because the mean of its divisors is an integer number (202304480).

Almost surely, 2^1213826852 is an apocalyptic number.

It is an amenable number.

1213826852 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1213826852 is a wasteful number, since it uses less digits than its factorization.

1213826852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43350970 (or 43350968 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 1213826852 is about 34840.0179678484. The cubic root of 1213826852 is about 1066.7244435284.

The spelling of 1213826852 in words is "one billion, two hundred thirteen million, eight hundred twenty-six thousand, eight hundred fifty-two".