1216996248 has 64 divisors (see below), whose sum is σ = 3280767840. Its totient is φ = 373976064.

The previous prime is 1216996247. The next prime is 1216996273. The reversal of 1216996248 is 8426996121.

It is a junction number, because it is equal to n+sod(n) for n = 1216996197 and 1216996206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216996243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295290 + ... + 299382.

Almost surely, 2^1216996248 is an apocalyptic number.

It is an amenable number.

1216996248 is an abundant number, since it is smaller than the sum of its proper divisors (2063771592).

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

1216996248 is a wasteful number, since it uses less digits than its factorization.

1216996248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5068 (or 5064 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 1216996248 is about 34885.4733091010. The cubic root of 1216996248 is about 1067.6520700310.

The spelling of 1216996248 in words is "one billion, two hundred sixteen million, nine hundred ninety-six thousand, two hundred forty-eight".