1298380000 has 60 divisors (see below), whose sum is σ = 3194258760. Its totient is φ = 519344000.

The previous prime is 1298379997. The next prime is 1298380001. The reversal of 1298380000 is 838921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298380001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12460 + ... + 52459.

It is an arithmetic number, because the mean of its divisors is an integer number (53237646).

Almost surely, 2^1298380000 is an apocalyptic number.

1298380000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1298380000 is an abundant number, since it is smaller than the sum of its proper divisors (1895878760).

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

1298380000 is an frugal number, since it uses more digits than its factorization.

1298380000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64949 (or 64926 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1298380000 is about 36033.0403935055. The cubic root of 1298380000 is about 1090.9393468040.

The spelling of 1298380000 in words is "one billion, two hundred ninety-eight million, three hundred eighty thousand".