1879942 has 4 divisors (see below), whose sum is σ = 2819916. Its totient is φ = 939970.

The previous prime is 1879939. The next prime is 1879949. The reversal of 1879942 is 2499781.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1879895 and 1879904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1879949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469984 + ... + 469987.

It is an arithmetic number, because the mean of its divisors is an integer number (704979).

2^1879942 is an apocalyptic number.

1879942 is a deficient number, since it is larger than the sum of its proper divisors (939974).

1879942 is an equidigital number, since it uses as much as digits as its factorization.

1879942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939973.

The product of its digits is 36288, while the sum is 40.

The square root of 1879942 is about 1371.1097694933. The cubic root of 1879942 is about 123.4188466285.

The spelling of 1879942 in words is "one million, eight hundred seventy-nine thousand, nine hundred forty-two".