1212976448 has 14 divisors (see below), whose sum is σ = 2407000266. Its totient is φ = 606488192.

The previous prime is 1212976447. The next prime is 1212976451. The reversal of 1212976448 is 8446792121.

It can be written as a sum of positive squares in only one way, i.e., 707985664 + 504990784 = 26608^2 + 22472^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1212976399 and 1212976408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212976447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9476315 + ... + 9476442.

Almost surely, 2^1212976448 is an apocalyptic number.

It is an amenable number.

1212976448 is a deficient number, since it is larger than the sum of its proper divisors (1194023818).

1212976448 is an equidigital number, since it uses as much as digits as its factorization.

1212976448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18952769 (or 18952759 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 1212976448 is about 34827.8114155914. The cubic root of 1212976448 is about 1066.4752705202.

The spelling of 1212976448 in words is "one billion, two hundred twelve million, nine hundred seventy-six thousand, four hundred forty-eight".