1890000473 has 4 divisors (see below), whose sum is σ = 1890149760. Its totient is φ = 1889851188.

The previous prime is 1890000461. The next prime is 1890000491. The reversal of 1890000473 is 3740000981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1890000473 - 2²⁴ = 1873223257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1890000403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53693 + ... + 81626.

It is an arithmetic number, because the mean of its divisors is an integer number (472537440).

Almost surely, 2^1890000473 is an apocalyptic number.

It is an amenable number.

1890000473 is a deficient number, since it is larger than the sum of its proper divisors (149287).

1890000473 is a wasteful number, since it uses less digits than its factorization.

1890000473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149286.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1890000473 is about 43474.1356785848. The cubic root of 1890000473 is about 1236.3856930837.

The spelling of 1890000473 in words is "one billion, eight hundred ninety million, four hundred seventy-three", and thus it is an aban number.