1271724996 has 24 divisors (see below), whose sum is σ = 2969707104. Its totient is φ = 423572800.

The previous prime is 1271724991. The next prime is 1271725019. The reversal of 1271724996 is 6994271721.

It is not an unprimeable number, because it can be changed into a prime (1271724991) 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, 25905 + ... + 56696.

It is an arithmetic number, because the mean of its divisors is an integer number (123737796).

Almost surely, 2^1271724996 is an apocalyptic number.

It is an amenable number.

1271724996 is an abundant number, since it is smaller than the sum of its proper divisors (1697982108).

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

1271724996 is a wasteful number, since it uses less digits than its factorization.

1271724996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83891 (or 83889 counting only the distinct ones).

The product of its digits is 381024, while the sum is 48.

The square root of 1271724996 is about 35661.2534272142. The cubic root of 1271724996 is about 1083.4222137939.

The spelling of 1271724996 in words is "one billion, two hundred seventy-one million, seven hundred twenty-four thousand, nine hundred ninety-six".