1980000239 has 8 divisors (see below), whose sum is σ = 2269163520. Its totient is φ = 1692413496.

The previous prime is 1980000229. The next prime is 1980000299. The reversal of 1980000239 is 9320000891.

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

It is a cyclic number.

It is not a de Polignac number, because 1980000239 - 2⁴ = 1980000223 is a prime.

It is a Duffinian number.

1980000239 is a modest number, since divided by 239 gives 198 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980000229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391439 + ... + 396464.

It is an arithmetic number, because the mean of its divisors is an integer number (283645440).

Almost surely, 2^1980000239 is an apocalyptic number.

1980000239 is a deficient number, since it is larger than the sum of its proper divisors (289163281).

1980000239 is an equidigital number, since it uses as much as digits as its factorization.

1980000239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788269.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1980000239 is about 44497.1936081367. The cubic root of 1980000239 is about 1255.7072861681.

The spelling of 1980000239 in words is "one billion, nine hundred eighty million, two hundred thirty-nine", and thus it is an aban number.