1980000238 has 16 divisors (see below), whose sum is σ = 2998314000. Its totient is φ = 980574336.

The previous prime is 1980000229. The next prime is 1980000299. The reversal of 1980000238 is 8320000891.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619681 + ... + 622867.

It is an arithmetic number, because the mean of its divisors is an integer number (187394625).

Almost surely, 2^1980000238 is an apocalyptic number.

1980000238 is a deficient number, since it is larger than the sum of its proper divisors (1018313762).

1980000238 is a wasteful number, since it uses less digits than its factorization.

1980000238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1980000238 is about 44497.1935969000. The cubic root of 1980000238 is about 1255.7072859567.

The spelling of 1980000238 in words is "one billion, nine hundred eighty million, two hundred thirty-eight", and thus it is an aban number.