1272936080 has 40 divisors (see below), whose sum is σ = 3187238712. Its totient is φ = 470006784.

The previous prime is 1272936079. The next prime is 1272936083. The reversal of 1272936080 is 806392721.

It can be written as a sum of positive squares in 4 ways, for example, as 30514576 + 1242421504 = 5524^2 + 35248^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1272936083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610949 + ... + 613028.

Almost surely, 2^1272936080 is an apocalyptic number.

1272936080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1272936080 is an abundant number, since it is smaller than the sum of its proper divisors (1914302632).

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

1272936080 is a wasteful number, since it uses less digits than its factorization.

1272936080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224003 (or 1223997 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1272936080 is about 35678.2297767140. The cubic root of 1272936080 is about 1083.7660247636.

The spelling of 1272936080 in words is "one billion, two hundred seventy-two million, nine hundred thirty-six thousand, eighty".