1998074 has 32 divisors (see below), whose sum is σ = 3472896. Its totient is φ = 855360.

The previous prime is 1998067. The next prime is 1998077. The reversal of 1998074 is 4708991.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1998077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29789 + ... + 29855.

It is an arithmetic number, because the mean of its divisors is an integer number (108528).

2^1998074 is an apocalyptic number.

1998074 is a deficient number, since it is larger than the sum of its proper divisors (1474822).

1998074 is a wasteful number, since it uses less digits than its factorization.

1998074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1998074 is about 1413.5324545266. The cubic root of 1998074 is about 125.9516485345.

The spelling of 1998074 in words is "one million, nine hundred ninety-eight thousand, seventy-four".