1930108489 has 3 divisors (see below), whose sum is σ = 1930152423. Its totient is φ = 1930064556.

The previous prime is 1930108469. The next prime is 1930108507. The reversal of 1930108489 is 9848010391.

The square root of 1930108489 is 43933.

It is a perfect power (a square), and thus also a powerful number.

1930108489 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 73188025 + 1856920464 = 8555^2 + 43092^2 .

It is not a de Polignac number, because 1930108489 - 2⁷ = 1930108361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1930108429) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 21967 + ... + 65899.

It is an arithmetic number, because the mean of its divisors is an integer number (643384141).

Almost surely, 2^1930108489 is an apocalyptic number.

1930108489 is the 43933-rd square number.

1930108489 is the 21967-th centered octagonal number.

It is an amenable number.

1930108489 is a deficient number, since it is larger than the sum of its proper divisors (43934).

1930108489 is an frugal number, since it uses more digits than its factorization.

1930108489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87866 (or 43933 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The cubic root of 1930108489 is about 1245.0703957443.

The spelling of 1930108489 in words is "one billion, nine hundred thirty million, one hundred eight thousand, four hundred eighty-nine".