1298180080 has 40 divisors (see below), whose sum is σ = 3020900400. Its totient is φ = 518819328.

The previous prime is 1298180033. The next prime is 1298180083. The reversal of 1298180080 is 800818921.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298180083) 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, 94276 + ... + 107164.

It is an arithmetic number, because the mean of its divisors is an integer number (75522510).

Almost surely, 2^1298180080 is an apocalyptic number.

1298180080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1298180080 is an abundant number, since it is smaller than the sum of its proper divisors (1722720320).

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

1298180080 is a wasteful number, since it uses less digits than its factorization.

1298180080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14161 (or 14155 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 37.

The square root of 1298180080 is about 36030.2661660999. The cubic root of 1298180080 is about 1090.8833509247.

The spelling of 1298180080 in words is "one billion, two hundred ninety-eight million, one hundred eighty thousand, eighty".