1296730276 has 6 divisors (see below), whose sum is σ = 2269277990. Its totient is φ = 648365136.

The previous prime is 1296730249. The next prime is 1296730339. The reversal of 1296730276 is 6720376921.

It can be written as a sum of positive squares in only one way, i.e., 1166222500 + 130507776 = 34150^2 + 11424^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162091281 + ... + 162091288.

Almost surely, 2^1296730276 is an apocalyptic number.

It is an amenable number.

1296730276 is a deficient number, since it is larger than the sum of its proper divisors (972547714).

1296730276 is a wasteful number, since it uses less digits than its factorization.

1296730276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324182573 (or 324182571 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 1296730276 is about 36010.1412938078. The cubic root of 1296730276 is about 1090.4771011295.

The spelling of 1296730276 in words is "one billion, two hundred ninety-six million, seven hundred thirty thousand, two hundred seventy-six".