1298514720 has 96 divisors (see below), whose sum is σ = 4305631680. Its totient is φ = 328043520.

The previous prime is 1298514697. The next prime is 1298514733. The reversal of 1298514720 is 274158921.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×1298514720³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62071 + ... + 80310.

It is an arithmetic number, because the mean of its divisors is an integer number (44850330).

Almost surely, 2^1298514720 is an apocalyptic number.

1298514720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1298514720 is an abundant number, since it is smaller than the sum of its proper divisors (3007116960).

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

1298514720 is a wasteful number, since it uses less digits than its factorization.

1298514720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142418 (or 142410 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1298514720 is about 36034.9097404170. The cubic root of 1298514720 is about 1090.9770774801.

The spelling of 1298514720 in words is "one billion, two hundred ninety-eight million, five hundred fourteen thousand, seven hundred twenty".