1298528 has 96 divisors (see below), whose sum is σ = 3483648. Its totient is φ = 460800.

The previous prime is 1298491. The next prime is 1298537. The reversal of 1298528 is 8258921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41873 + ... + 41903.

It is an arithmetic number, because the mean of its divisors is an integer number (36288).

2^1298528 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 1298528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1741824).

1298528 is an abundant number, since it is smaller than the sum of its proper divisors (2185120).

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

1298528 is a wasteful number, since it uses less digits than its factorization.

1298528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 68 counting only the distinct ones).

The product of its digits is 11520, while the sum is 35.

The square root of 1298528 is about 1139.5297275631. The cubic root of 1298528 is about 109.0980796633.

The spelling of 1298528 in words is "one million, two hundred ninety-eight thousand, five hundred twenty-eight".