1888142 has 4 divisors (see below), whose sum is σ = 2832216. Its totient is φ = 944070.

The previous prime is 1888129. The next prime is 1888151. The reversal of 1888142 is 2418881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2418881 = 223 ⋅10847.

It is a junction number, because it is equal to n+sod(n) for n = 1888099 and 1888108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472034 + ... + 472037.

It is an arithmetic number, because the mean of its divisors is an integer number (708054).

2^1888142 is an apocalyptic number.

1888142 is a deficient number, since it is larger than the sum of its proper divisors (944074).

1888142 is an equidigital number, since it uses as much as digits as its factorization.

1888142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944073.

The product of its digits is 4096, while the sum is 32.

The square root of 1888142 is about 1374.0967942616. The cubic root of 1888142 is about 123.5980306414.

The spelling of 1888142 in words is "one million, eight hundred eighty-eight thousand, one hundred forty-two".