1889013530 has 8 divisors (see below), whose sum is σ = 3400224372. Its totient is φ = 755605408.

The previous prime is 1889013509. The next prime is 1889013563. The reversal of 1889013530 is 353109881.

It can be written as a sum of positive squares in 2 ways, for example, as 1888510849 + 502681 = 43457^2 + 709^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94450667 + ... + 94450686.

Almost surely, 2^1889013530 is an apocalyptic number.

1889013530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1889013530 is a deficient number, since it is larger than the sum of its proper divisors (1511210842).

1889013530 is a wasteful number, since it uses less digits than its factorization.

1889013530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188901360.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 1889013530 is about 43462.7832748893. The cubic root of 1889013530 is about 1236.1704454009.

The spelling of 1889013530 in words is "one billion, eight hundred eighty-nine million, thirteen thousand, five hundred thirty".