1297480724 has 12 divisors (see below), whose sum is σ = 2271578400. Its totient is φ = 648458328.

The previous prime is 1297480703. The next prime is 1297480729. The reversal of 1297480724 is 4270847921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297480729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59984 + ... + 78695.

It is an arithmetic number, because the mean of its divisors is an integer number (189298200).

Almost surely, 2^1297480724 is an apocalyptic number.

It is an amenable number.

1297480724 is a deficient number, since it is larger than the sum of its proper divisors (974097676).

1297480724 is a wasteful number, since it uses less digits than its factorization.

1297480724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141022 (or 141020 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 1297480724 is about 36020.5597402372. The cubic root of 1297480724 is about 1090.6874220575.

The spelling of 1297480724 in words is "one billion, two hundred ninety-seven million, four hundred eighty thousand, seven hundred twenty-four".