1297487480 has 16 divisors (see below), whose sum is σ = 2919346920. Its totient is φ = 518994976.

The previous prime is 1297487453. The next prime is 1297487483. The reversal of 1297487480 is 847847921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297487483) 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, 16218554 + ... + 16218633.

Almost surely, 2^1297487480 is an apocalyptic number.

1297487480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1297487480 is an abundant number, since it is smaller than the sum of its proper divisors (1621859440).

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

1297487480 is a wasteful number, since it uses less digits than its factorization.

1297487480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32437198 (or 32437194 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 50.

The square root of 1297487480 is about 36020.6535198905. The cubic root of 1297487480 is about 1090.6893151291.

The spelling of 1297487480 in words is "one billion, two hundred ninety-seven million, four hundred eighty-seven thousand, four hundred eighty".