1297260804 has 96 divisors (see below), whose sum is σ = 3507159040. Its totient is φ = 365565312.

The previous prime is 1297260773. The next prime is 1297260823. The reversal of 1297260804 is 4080627921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2954817 + ... + 2955255.

Almost surely, 2^1297260804 is an apocalyptic number.

1297260804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1297260804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1753579520).

1297260804 is an abundant number, since it is smaller than the sum of its proper divisors (2209898236).

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

1297260804 is a wasteful number, since it uses less digits than its factorization.

1297260804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1297260804 is about 36017.5069098348. The cubic root of 1297260804 is about 1090.6257955720.

The spelling of 1297260804 in words is "one billion, two hundred ninety-seven million, two hundred sixty thousand, eight hundred four".