1889042 has 4 divisors (see below), whose sum is σ = 2833566. Its totient is φ = 944520.

The previous prime is 1889039. The next prime is 1889051. The reversal of 1889042 is 2409881.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2409881 = 109 ⋅22109.

It can be written as a sum of positive squares in only one way, i.e., 1713481 + 175561 = 1309^2 + 419^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472259 + ... + 472262.

2^1889042 is an apocalyptic number.

1889042 is a deficient number, since it is larger than the sum of its proper divisors (944524).

1889042 is an equidigital number, since it uses as much as digits as its factorization.

1889042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944523.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1889042 is about 1374.4242430924. The cubic root of 1889042 is about 123.6176655626.

It can be divided in two parts, 18 and 89042, that multiplied together give a square (1602756 = 1266²).

The spelling of 1889042 in words is "one million, eight hundred eighty-nine thousand, forty-two".