1298683880 has 48 divisors (see below), whose sum is σ = 3164117580. Its totient is φ = 479511552.

The previous prime is 1298683861. The next prime is 1298683909. The reversal of 1298683880 is 883868921.

It can be written as a sum of positive squares in 6 ways, for example, as 367335556 + 931348324 = 19166^2 + 30518^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89297 + ... + 102816.

Almost surely, 2^1298683880 is an apocalyptic number.

1298683880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1298683880 is an abundant number, since it is smaller than the sum of its proper divisors (1865433700).

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

1298683880 is a wasteful number, since it uses less digits than its factorization.

1298683880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192150 (or 192133 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 53.

The square root of 1298683880 is about 36037.2568323395. The cubic root of 1298683880 is about 1091.0244499810.

The spelling of 1298683880 in words is "one billion, two hundred ninety-eight million, six hundred eighty-three thousand, eight hundred eighty".