1298668032 has 160 divisors (see below), whose sum is σ = 3949598400. Its totient is φ = 421023744.

The previous prime is 1298668013. The next prime is 1298668037. The reversal of 1298668032 is 2308668921.

It is not an unprimeable number, because it can be changed into a prime (1298668037) 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, 510219 + ... + 512757.

It is an arithmetic number, because the mean of its divisors is an integer number (24684990).

Almost surely, 2^1298668032 is an apocalyptic number.

1298668032 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 1298668032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1974799200).

1298668032 is an abundant number, since it is smaller than the sum of its proper divisors (2650930368).

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

1298668032 is an equidigital number, since it uses as much as digits as its factorization.

1298668032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603 (or 2581 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1298668032 is about 36037.0369481177. The cubic root of 1298668032 is about 1091.0200119941.

It can be divided in two parts, 12986 and 68032, that added together give a palindrome (81018).

The spelling of 1298668032 in words is "one billion, two hundred ninety-eight million, six hundred sixty-eight thousand, thirty-two".