1889330090 has 8 divisors (see below), whose sum is σ = 3400794180. Its totient is φ = 755732032.

The previous prime is 1889330089. The next prime is 1889330141. The reversal of 1889330090 is 900339881.

It can be written as a sum of positive squares in 2 ways, for example, as 1570457641 + 318872449 = 39629^2 + 17857^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94466495 + ... + 94466514.

Almost surely, 2^1889330090 is an apocalyptic number.

1889330090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1889330090 is a deficient number, since it is larger than the sum of its proper divisors (1511464090).

1889330090 is a wasteful number, since it uses less digits than its factorization.

1889330090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188933016.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 1889330090 is about 43466.4248587344. The cubic root of 1889330090 is about 1236.2394938315.

The spelling of 1889330090 in words is "one billion, eight hundred eighty-nine million, three hundred thirty thousand, ninety".