1298344520 has 48 divisors (see below), whose sum is σ = 3211000380. Its totient is φ = 472123520.

The previous prime is 1298344517. The next prime is 1298344631. The reversal of 1298344520 is 254438921.

It can be written as a sum of positive squares in 2 ways, for example, as 1222061764 + 76282756 = 34958^2 + 8734^2 .

It is a super-2 number, since 2×1298344520² = 3371396985228060800, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 129287 + ... + 138966.

Almost surely, 2^1298344520 is an apocalyptic number.

1298344520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1298344520 is an abundant number, since it is smaller than the sum of its proper divisors (1912655860).

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

1298344520 is a wasteful number, since it uses less digits than its factorization.

1298344520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268286 (or 268271 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 1298344520 is about 36032.5480642155. The cubic root of 1298344520 is about 1090.9294095795.

The spelling of 1298344520 in words is "one billion, two hundred ninety-eight million, three hundred forty-four thousand, five hundred twenty".