1859442 has 32 divisors (see below), whose sum is σ = 4139520. Its totient is φ = 552960.

The previous prime is 1859441. The next prime is 1859453. The reversal of 1859442 is 2449581.

It is not an unprimeable number, because it can be changed into a prime (1859441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2034 + ... + 2802.

It is an arithmetic number, because the mean of its divisors is an integer number (129360).

2^1859442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1859442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2069760).

1859442 is an abundant number, since it is smaller than the sum of its proper divisors (2280078).

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

1859442 is a wasteful number, since it uses less digits than its factorization.

1859442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818.

The product of its digits is 11520, while the sum is 33.

The square root of 1859442 is about 1363.6135816279. The cubic root of 1859442 is about 122.9685953269.

The spelling of 1859442 in words is "one million, eight hundred fifty-nine thousand, four hundred forty-two".