1887942 has 32 divisors (see below), whose sum is σ = 4377600. Its totient is φ = 531648.

The previous prime is 1887923. The next prime is 1887947. The reversal of 1887942 is 2497881.

It is a self number, because there is not a number n which added to its sum of digits gives 1887942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1887947) 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, 3034 + ... + 3602.

It is an arithmetic number, because the mean of its divisors is an integer number (136800).

2^1887942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1887942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2188800).

1887942 is an abundant number, since it is smaller than the sum of its proper divisors (2489658).

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

1887942 is a wasteful number, since it uses less digits than its factorization.

1887942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660.

The product of its digits is 32256, while the sum is 39.

The square root of 1887942 is about 1374.0240172573. The cubic root of 1887942 is about 123.5936664783.

The spelling of 1887942 in words is "one million, eight hundred eighty-seven thousand, nine hundred forty-two".