1839972 has 24 divisors (see below), whose sum is σ = 4336416. Its totient is φ = 607168.

The previous prime is 1839967. The next prime is 1839983. The reversal of 1839972 is 2799381.

It is a self number, because there is not a number n which added to its sum of digits gives 1839972.

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, 568 + ... + 2000.

It is an arithmetic number, because the mean of its divisors is an integer number (180684).

2^1839972 is an apocalyptic number.

1839972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1839972 is an abundant number, since it is smaller than the sum of its proper divisors (2496444).

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

1839972 is a wasteful number, since it uses less digits than its factorization.

1839972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547 (or 1545 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 1839972 is about 1356.4556756489. The cubic root of 1839972 is about 122.5378919292.

The spelling of 1839972 in words is "one million, eight hundred thirty-nine thousand, nine hundred seventy-two".