1298900 has 36 divisors (see below), whose sum is σ = 2916480. Its totient is φ = 501600.

The previous prime is 1298887. The next prime is 1298909. The reversal of 1298900 is 98921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298909) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2891 + ... + 3309.

2^1298900 is an apocalyptic number.

1298900 is a gapful number since it is divisible by the number (10) 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 1298900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1458240).

1298900 is an abundant number, since it is smaller than the sum of its proper divisors (1617580).

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

1298900 is a wasteful number, since it uses less digits than its factorization.

1298900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1298900 is about 1139.6929411030. The cubic root of 1298900 is about 109.1084967435.

The spelling of 1298900 in words is "one million, two hundred ninety-eight thousand, nine hundred".