1938161036 has 24 divisors (see below), whose sum is σ = 3925393920. Its totient is φ = 820125072.

The previous prime is 1938160997. The next prime is 1938161077. The reversal of 1938161036 is 6301618391.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435890 + ... + 440313.

It is an arithmetic number, because the mean of its divisors is an integer number (163558080).

Almost surely, 2^1938161036 is an apocalyptic number.

It is an amenable number.

1938161036 is an abundant number, since it is smaller than the sum of its proper divisors (1987232884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1938161036 is a wasteful number, since it uses less digits than its factorization.

1938161036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876293 (or 876291 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1938161036 is about 44024.5503781697. The cubic root of 1938161036 is about 1246.7995001142.

The spelling of 1938161036 in words is "one billion, nine hundred thirty-eight million, one hundred sixty-one thousand, thirty-six".