1881204 has 48 divisors (see below), whose sum is σ = 4892160. Its totient is φ = 558720.

The previous prime is 1881199. The next prime is 1881211. The reversal of 1881204 is 4021881.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4642 + ... + 5030.

It is an arithmetic number, because the mean of its divisors is an integer number (101920).

2^1881204 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 1881204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2446080).

1881204 is an abundant number, since it is smaller than the sum of its proper divisors (3010956).

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

1881204 is a wasteful number, since it uses less digits than its factorization.

1881204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 1881204 is about 1371.5699034318. The cubic root of 1881204 is about 123.4464573642.

The spelling of 1881204 in words is "one million, eight hundred eighty-one thousand, two hundred four".