1272866448 has 80 divisors (see below), whose sum is σ = 3879243776. Its totient is φ = 351941760.

The previous prime is 1272866401. The next prime is 1272866599. The reversal of 1272866448 is 8446682721.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1272866397 and 1272866406.

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, 50686 + ... + 71517.

Almost surely, 2^1272866448 is an apocalyptic number.

It is an amenable number.

1272866448 is an abundant number, since it is smaller than the sum of its proper divisors (2606377328).

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

1272866448 is a wasteful number, since it uses less digits than its factorization.

1272866448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122252 (or 122246 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 1272866448 is about 35677.2539302004. The cubic root of 1272866448 is about 1083.7462630560.

The spelling of 1272866448 in words is "one billion, two hundred seventy-two million, eight hundred sixty-six thousand, four hundred forty-eight".