1825998 has 16 divisors (see below), whose sum is σ = 3668736. Its totient is φ = 605880.

The previous prime is 1825969. The next prime is 1826003. The reversal of 1825998 is 8995281.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1065 + ... + 2187.

It is an arithmetic number, because the mean of its divisors is an integer number (229296).

2^1825998 is an apocalyptic number.

1825998 is an abundant number, since it is smaller than the sum of its proper divisors (1842738).

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

1825998 is a wasteful number, since it uses less digits than its factorization.

1825998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399.

The product of its digits is 51840, while the sum is 42.

The square root of 1825998 is about 1351.2949344980. The cubic root of 1825998 is about 122.2268912205.

The spelling of 1825998 in words is "one million, eight hundred twenty-five thousand, nine hundred ninety-eight".