1298328 has 32 divisors (see below), whose sum is σ = 3317760. Its totient is φ = 423200.

The previous prime is 1298317. The next prime is 1298329. The reversal of 1298328 is 8238921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553 + ... + 1703.

It is an arithmetic number, because the mean of its divisors is an integer number (103680).

2^1298328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1298328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1658880).

1298328 is an abundant number, since it is smaller than the sum of its proper divisors (2019432).

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

1298328 is a wasteful number, since it uses less digits than its factorization.

1298328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207 (or 1203 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 1298328 is about 1139.4419686847. The cubic root of 1298328 is about 109.0924782603.

Multiplying 1298328 by its sum of digits (33), we get a palindrome (42844824).

The spelling of 1298328 in words is "one million, two hundred ninety-eight thousand, three hundred twenty-eight".