1938834958 has 4 divisors (see below), whose sum is σ = 2908252440. Its totient is φ = 969417478.

The previous prime is 1938834941. The next prime is 1938834973. The reversal of 1938834958 is 8594388391.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 484708738 + ... + 484708741.

It is an arithmetic number, because the mean of its divisors is an integer number (727063110).

Almost surely, 2^1938834958 is an apocalyptic number.

1938834958 is a deficient number, since it is larger than the sum of its proper divisors (969417482).

1938834958 is an equidigital number, since it uses as much as digits as its factorization.

1938834958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969417481.

The product of its digits is 7464960, while the sum is 58.

The square root of 1938834958 is about 44032.2036468765. The cubic root of 1938834958 is about 1246.9439924496.

The spelling of 1938834958 in words is "one billion, nine hundred thirty-eight million, eight hundred thirty-four thousand, nine hundred fifty-eight".