1298328276 has 48 divisors (see below), whose sum is σ = 3520903680. Its totient is φ = 364662240.

The previous prime is 1298328271. The next prime is 1298328281. The reversal of 1298328276 is 6728238921.

It is an interprime number because it is at equal distance from previous prime (1298328271) and next prime (1298328281).

It is a super-2 number, since 2×1298328276² = 3371312624522264352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298328271) 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, 126030 + ... + 135941.

It is an arithmetic number, because the mean of its divisors is an integer number (73352160).

Almost surely, 2^1298328276 is an apocalyptic number.

It is an amenable number.

1298328276 is an abundant number, since it is smaller than the sum of its proper divisors (2222575404).

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

1298328276 is a wasteful number, since it uses less digits than its factorization.

1298328276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262044 (or 262042 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 1298328276 is about 36032.3226561930. The cubic root of 1298328276 is about 1090.9248599059.

The spelling of 1298328276 in words is "one billion, two hundred ninety-eight million, three hundred twenty-eight thousand, two hundred seventy-six".