1939884 has 24 divisors (see below), whose sum is σ = 4562880. Its totient is φ = 641424.

The previous prime is 1939879. The next prime is 1939891. The reversal of 1939884 is 4889391.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1087 + ... + 2249.

It is an arithmetic number, because the mean of its divisors is an integer number (190120).

2^1939884 is an apocalyptic number.

It is an amenable number.

1939884 is an abundant number, since it is smaller than the sum of its proper divisors (2622996).

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

1939884 is a wasteful number, since it uses less digits than its factorization.

1939884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1307 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 1939884 is about 1392.7971855227. The cubic root of 1939884 is about 124.7168845827.

It can be divided in two parts, 19 and 39884, that added together give a triangular number (39903 = T₂₈₂).

The spelling of 1939884 in words is "one million, nine hundred thirty-nine thousand, eight hundred eighty-four".