1840798 has 4 divisors (see below), whose sum is σ = 2761200. Its totient is φ = 920398.

The previous prime is 1840789. The next prime is 1840829. The reversal of 1840798 is 8970481.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8970481 = 13 ⋅690037.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 460198 + ... + 460201.

It is an arithmetic number, because the mean of its divisors is an integer number (690300).

2^1840798 is an apocalyptic number.

1840798 is a deficient number, since it is larger than the sum of its proper divisors (920402).

1840798 is an equidigital number, since it uses as much as digits as its factorization.

1840798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920401.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 1840798 is about 1356.7601114420. The cubic root of 1840798 is about 122.5562257511.

The spelling of 1840798 in words is "one million, eight hundred forty thousand, seven hundred ninety-eight".