1890473189 has 8 divisors (see below), whose sum is σ = 2090586432. Its totient is φ = 1695068640.

The previous prime is 1890473177. The next prime is 1890473203. The reversal of 1890473189 is 9813740981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1890473189 - 2¹⁶ = 1890407653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890473159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1176329 + ... + 1177934.

It is an arithmetic number, because the mean of its divisors is an integer number (261323304).

Almost surely, 2^1890473189 is an apocalyptic number.

It is an amenable number.

1890473189 is a deficient number, since it is larger than the sum of its proper divisors (200113243).

1890473189 is a wasteful number, since it uses less digits than its factorization.

1890473189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354347.

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 1890473189 is about 43479.5720885107. The cubic root of 1890473189 is about 1236.4887637068.

The spelling of 1890473189 in words is "one billion, eight hundred ninety million, four hundred seventy-three thousand, one hundred eighty-nine".