1216052832 has 96 divisors (see below), whose sum is σ = 3241244160. Its totient is φ = 399168000.

The previous prime is 1216052821. The next prime is 1216052867. The reversal of 1216052832 is 2382506121.

1216052832 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 1216052832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2626233 + ... + 2626695.

It is an arithmetic number, because the mean of its divisors is an integer number (33762960).

Almost surely, 2^1216052832 is an apocalyptic number.

1216052832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1216052832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1620622080).

1216052832 is an abundant number, since it is smaller than the sum of its proper divisors (2025191328).

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

1216052832 is a wasteful number, since it uses less digits than its factorization.

1216052832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1216052832 is about 34871.9490708506. The cubic root of 1216052832 is about 1067.3761172689.

Adding to 1216052832 its reverse (2382506121), we get a palindrome (3598558953).

The spelling of 1216052832 in words is "one billion, two hundred sixteen million, fifty-two thousand, eight hundred thirty-two".