1890023422 has 32 divisors (see below), whose sum is σ = 3263177664. Its totient is φ = 804249600.

The previous prime is 1890023417. The next prime is 1890023437. The reversal of 1890023422 is 2243200981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1388022 + ... + 1389382.

It is an arithmetic number, because the mean of its divisors is an integer number (101974302).

Almost surely, 2^1890023422 is an apocalyptic number.

1890023422 is a deficient number, since it is larger than the sum of its proper divisors (1373154242).

1890023422 is a wasteful number, since it uses less digits than its factorization.

1890023422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1890023422 is about 43474.3996163259. The cubic root of 1890023422 is about 1236.3906972624.

The spelling of 1890023422 in words is "one billion, eight hundred ninety million, twenty-three thousand, four hundred twenty-two".