1298212680 has 64 divisors (see below), whose sum is σ = 3908036160. Its totient is φ = 344999168.

The previous prime is 1298212589. The next prime is 1298212681. The reversal of 1298212680 is 862128921.

It is not an unprimeable number, because it can be changed into a prime (1298212681) by changing a digit.

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, 16699 + ... + 53621.

It is an arithmetic number, because the mean of its divisors is an integer number (61063065).

Almost surely, 2^1298212680 is an apocalyptic number.

1298212680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1298212680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1954018080).

1298212680 is an abundant number, since it is smaller than the sum of its proper divisors (2609823480).

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

1298212680 is a wasteful number, since it uses less digits than its factorization.

1298212680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37230 (or 37226 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 1298212680 is about 36030.7185606948. The cubic root of 1298212680 is about 1090.8924822976.

The spelling of 1298212680 in words is "one billion, two hundred ninety-eight million, two hundred twelve thousand, six hundred eighty".