1298322680 has 32 divisors (see below), whose sum is σ = 2950158240. Its totient is φ = 514185600.

The previous prime is 1298322673. The next prime is 1298322703. The reversal of 1298322680 is 862238921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156644 + ... + 164723.

It is an arithmetic number, because the mean of its divisors is an integer number (92192445).

Almost surely, 2^1298322680 is an apocalyptic number.

1298322680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1298322680 is an abundant number, since it is smaller than the sum of its proper divisors (1651835560).

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

1298322680 is a wasteful number, since it uses less digits than its factorization.

1298322680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321479 (or 321475 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1298322680 is about 36032.2450036075. The cubic root of 1298322680 is about 1090.9232925508.

The spelling of 1298322680 in words is "one billion, two hundred ninety-eight million, three hundred twenty-two thousand, six hundred eighty".