1698242 has 48 divisors (see below), whose sum is σ = 3370752. Its totient is φ = 635040.

The previous prime is 1698241. The next prime is 1698247. The reversal of 1698242 is 2428961.

Its product of digits (6912) is a multiple of the sum of its prime divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 1698199 and 1698208.

It is not an unprimeable number, because it can be changed into a prime (1698241) 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 23 ways as a sum of consecutive naturals, for example, 39473 + ... + 39515.

It is an arithmetic number, because the mean of its divisors is an integer number (70224).

2^1698242 is an apocalyptic number.

1698242 is a deficient number, since it is larger than the sum of its proper divisors (1672510).

1698242 is a wasteful number, since it uses less digits than its factorization.

1698242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 96 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 1698242 is about 1303.1661444344. The cubic root of 1698242 is about 119.3071649357.

The spelling of 1698242 in words is "one million, six hundred ninety-eight thousand, two hundred forty-two".