1298892 has 54 divisors (see below), whose sum is σ = 3602172. Its totient is φ = 363216.

The previous prime is 1298887. The next prime is 1298909. The reversal of 1298892 is 2988921.

It is a self number, because there is not a number n which added to its sum of digits gives 1298892.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27613 + ... + 27659.

2^1298892 is an apocalyptic number.

1298892 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 1298892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1801086).

1298892 is an abundant number, since it is smaller than the sum of its proper divisors (2303280).

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

1298892 is a wasteful number, since it uses less digits than its factorization.

1298892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 59 counting only the distinct ones).

The product of its digits is 20736, while the sum is 39.

The square root of 1298892 is about 1139.6894313803. The cubic root of 1298892 is about 109.1082727412.

The spelling of 1298892 in words is "one million, two hundred ninety-eight thousand, eight hundred ninety-two".