1859872 has 72 divisors (see below), whose sum is σ = 4608576. Its totient is φ = 722304.

The previous prime is 1859863. The next prime is 1859881. The reversal of 1859872 is 2789581.

It is an interprime number because it is at equal distance from previous prime (1859863) and next prime (1859881).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80853 + ... + 80875.

It is an arithmetic number, because the mean of its divisors is an integer number (64008).

2^1859872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1859872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2304288).

1859872 is an abundant number, since it is smaller than the sum of its proper divisors (2748704).

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

1859872 is a wasteful number, since it uses less digits than its factorization.

1859872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 51 counting only the distinct ones).

The product of its digits is 40320, while the sum is 40.

The square root of 1859872 is about 1363.7712418144. The cubic root of 1859872 is about 122.9780735146.

The spelling of 1859872 in words is "one million, eight hundred fifty-nine thousand, eight hundred seventy-two".