1890698073 has 32 divisors (see below), whose sum is σ = 2791895040. Its totient is φ = 1128541440.

The previous prime is 1890698071. The next prime is 1890698081. The reversal of 1890698073 is 3708960981.

It is not a de Polignac number, because 1890698073 - 2¹ = 1890698071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1890698071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1545340 + ... + 1546562.

It is an arithmetic number, because the mean of its divisors is an integer number (87246720).

Almost surely, 2^1890698073 is an apocalyptic number.

It is an amenable number.

1890698073 is a deficient number, since it is larger than the sum of its proper divisors (901196967).

1890698073 is a wasteful number, since it uses less digits than its factorization.

1890698073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909.

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 1890698073 is about 43482.1580996160. The cubic root of 1890698073 is about 1236.5377912052.

The spelling of 1890698073 in words is "one billion, eight hundred ninety million, six hundred ninety-eight thousand, seventy-three".