1298298912 has 96 divisors (see below), whose sum is σ = 3548422080. Its totient is φ = 415134720.

The previous prime is 1298298889. The next prime is 1298298913. The reversal of 1298298912 is 2198928921.

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

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1298298913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452362 + ... + 455222.

It is an arithmetic number, because the mean of its divisors is an integer number (36962730).

Almost surely, 2^1298298912 is an apocalyptic number.

1298298912 is a gapful number since it is divisible by the number (12) 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 1298298912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1774211040).

1298298912 is an abundant number, since it is smaller than the sum of its proper divisors (2250123168).

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

1298298912 is a wasteful number, since it uses less digits than its factorization.

1298298912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066 (or 3058 counting only the distinct ones).

The product of its digits is 373248, while the sum is 51.

The square root of 1298298912 is about 36031.9151864011. The cubic root of 1298298912 is about 1090.9166354428.

The spelling of 1298298912 in words is "one billion, two hundred ninety-eight million, two hundred ninety-eight thousand, nine hundred twelve".