1298850 has 48 divisors (see below), whose sum is σ = 3684288. Its totient is φ = 296640.

The previous prime is 1298849. The next prime is 1298863. The reversal of 1298850 is 588921.

It is a happy number.

It is a super-2 number, since 2×1298850² = 3374022645000, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 432 + ... + 1668.

It is an arithmetic number, because the mean of its divisors is an integer number (76756).

2^1298850 is an apocalyptic number.

1298850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1298850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1842144).

1298850 is an abundant number, since it is smaller than the sum of its proper divisors (2385438).

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

1298850 is a wasteful number, since it uses less digits than its factorization.

1298850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 1298850 is about 1139.6710051589. The cubic root of 1298850 is about 109.1070967140.

The spelling of 1298850 in words is "one million, two hundred ninety-eight thousand, eight hundred fifty".