1881392 has 20 divisors (see below), whose sum is σ = 3708840. Its totient is φ = 924288.

The previous prime is 1881391. The next prime is 1881401. The reversal of 1881392 is 2931881.

It is not an unprimeable number, because it can be changed into a prime (1881391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53 + ... + 1940.

It is an arithmetic number, because the mean of its divisors is an integer number (185442).

2^1881392 is an apocalyptic number.

It is an amenable number.

1881392 is a deficient number, since it is larger than the sum of its proper divisors (1827448).

1881392 is a wasteful number, since it uses less digits than its factorization.

1881392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060 (or 2054 counting only the distinct ones).

The product of its digits is 3456, while the sum is 32.

The square root of 1881392 is about 1371.6384363235. The cubic root of 1881392 is about 123.4505694755.

It can be divided in two parts, 188139 and 2, that multiplied together give a triangular number (376278 = T₈₆₇).

The spelling of 1881392 in words is "one million, eight hundred eighty-one thousand, three hundred ninety-two".