1889422 has 4 divisors (see below), whose sum is σ = 2834136. Its totient is φ = 944710.

The previous prime is 1889411. The next prime is 1889423. The reversal of 1889422 is 2249881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2249881 = 83 ⋅27107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472354 + ... + 472357.

It is an arithmetic number, because the mean of its divisors is an integer number (708534).

2^1889422 is an apocalyptic number.

1889422 is a deficient number, since it is larger than the sum of its proper divisors (944714).

1889422 is an equidigital number, since it uses as much as digits as its factorization.

1889422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944713.

The product of its digits is 9216, while the sum is 34.

The square root of 1889422 is about 1374.5624758446. The cubic root of 1889422 is about 123.6259539901.

The spelling of 1889422 in words is "one million, eight hundred eighty-nine thousand, four hundred twenty-two".