1881942 has 16 divisors (see below), whose sum is σ = 3810240. Its totient is φ = 619592.

The previous prime is 1881937. The next prime is 1881949. The reversal of 1881942 is 2491881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1881949) 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 7 ways as a sum of consecutive naturals, for example, 1392 + ... + 2387.

It is an arithmetic number, because the mean of its divisors is an integer number (238140).

2^1881942 is an apocalyptic number.

1881942 is an abundant number, since it is smaller than the sum of its proper divisors (1928298).

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

1881942 is a wasteful number, since it uses less digits than its factorization.

1881942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3867.

The product of its digits is 4608, while the sum is 33.

The square root of 1881942 is about 1371.8389118260. The cubic root of 1881942 is about 123.4625980157.

The spelling of 1881942 in words is "one million, eight hundred eighty-one thousand, nine hundred forty-two".