1798120 has 16 divisors (see below), whose sum is σ = 4045860. Its totient is φ = 719232.

The previous prime is 1798109. The next prime is 1798123. The reversal of 1798120 is 218971.

It can be written as a sum of positive squares in 2 ways, for example, as 1633284 + 164836 = 1278^2 + 406^2 .

It is not an unprimeable number, because it can be changed into a prime (1798123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22437 + ... + 22516.

2^1798120 is an apocalyptic number.

1798120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1798120 is an abundant number, since it is smaller than the sum of its proper divisors (2247740).

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

1798120 is a wasteful number, since it uses less digits than its factorization.

1798120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44964 (or 44960 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1798120 is about 1340.9399688278. The cubic root of 1798120 is about 121.6016750116.

The spelling of 1798120 in words is "one million, seven hundred ninety-eight thousand, one hundred twenty".