1798830 has 96 divisors (see below), whose sum is σ = 5391360. Its totient is φ = 411840.

The previous prime is 1798817. The next prime is 1798861. The reversal of 1798830 is 388971.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22731 + ... + 22809.

It is an arithmetic number, because the mean of its divisors is an integer number (56160).

2^1798830 is an apocalyptic number.

1798830 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 1798830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2695680).

1798830 is an abundant number, since it is smaller than the sum of its proper divisors (3592530).

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

1798830 is a wasteful number, since it uses less digits than its factorization.

1798830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1798830 is about 1341.2046823658. The cubic root of 1798830 is about 121.6176779902.

It can be divided in two parts, 1798 and 830, that added together give a triangular number (2628 = T₇₂).

The spelling of 1798830 in words is "one million, seven hundred ninety-eight thousand, eight hundred thirty".