1881924 has 48 divisors (see below), whose sum is σ = 4898880. Its totient is φ = 557440.

The previous prime is 1881907. The next prime is 1881937. The reversal of 1881924 is 4291881.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 6862 + ... + 7130.

It is an arithmetic number, because the mean of its divisors is an integer number (102060).

2^1881924 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 1881924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2449440).

1881924 is an abundant number, since it is smaller than the sum of its proper divisors (3016956).

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

1881924 is a wasteful number, since it uses less digits than its factorization.

1881924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 338 counting only the distinct ones).

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

The square root of 1881924 is about 1371.8323512733. The cubic root of 1881924 is about 123.4622043915.

It can be divided in two parts, 188 and 1924, that added together give a palindrome (2112).

The spelling of 1881924 in words is "one million, eight hundred eighty-one thousand, nine hundred twenty-four".