1881834 has 8 divisors (see below), whose sum is σ = 3763680. Its totient is φ = 627276.

The previous prime is 1881823. The next prime is 1881851. The reversal of 1881834 is 4381881.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1881834 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1881795 and 1881804.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 156814 + ... + 156825.

It is an arithmetic number, because the mean of its divisors is an integer number (470460).

2^1881834 is an apocalyptic number.

1881834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1881834 is a wasteful number, since it uses less digits than its factorization.

1881834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313644.

The product of its digits is 6144, while the sum is 33.

The square root of 1881834 is about 1371.7995480390. The cubic root of 1881834 is about 123.4602362328.

The spelling of 1881834 in words is "one million, eight hundred eighty-one thousand, eight hundred thirty-four".