1213784332 has 12 divisors (see below), whose sum is σ = 2124450720. Its totient is φ = 606798416.

The previous prime is 1213784311. The next prime is 1213784333. The reversal of 1213784332 is 2334873121.

It is not an unprimeable number, because it can be changed into a prime (1213784333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11469 + ... + 50587.

It is an arithmetic number, because the mean of its divisors is an integer number (177037560).

Almost surely, 2^1213784332 is an apocalyptic number.

It is an amenable number.

1213784332 is a deficient number, since it is larger than the sum of its proper divisors (910666388).

1213784332 is a wasteful number, since it uses less digits than its factorization.

1213784332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46880 (or 46878 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 1213784332 is about 34839.4077446790. The cubic root of 1213784332 is about 1066.7119877011.

It can be divided in two parts, 12137 and 84332, that added together give a palindrome (96469).

The spelling of 1213784332 in words is "one billion, two hundred thirteen million, seven hundred eighty-four thousand, three hundred thirty-two".