1216982432 has 24 divisors (see below), whose sum is σ = 2396715300. Its totient is φ = 608292864.

The previous prime is 1216982423. The next prime is 1216982443. The reversal of 1216982432 is 2342896121.

It can be written as a sum of positive squares in 2 ways, for example, as 1189146256 + 27836176 = 34484^2 + 5276^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174794 + ... + 181622.

Almost surely, 2^1216982432 is an apocalyptic number.

It is an amenable number.

1216982432 is a deficient number, since it is larger than the sum of its proper divisors (1179732868).

1216982432 is an equidigital number, since it uses as much as digits as its factorization.

1216982432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12408 (or 12400 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 1216982432 is about 34885.2752891532. The cubic root of 1216982432 is about 1067.6480298277.

The spelling of 1216982432 in words is "one billion, two hundred sixteen million, nine hundred eighty-two thousand, four hundred thirty-two".