1938101020 has 24 divisors (see below), whose sum is σ = 4092757200. Its totient is φ = 770908032.

The previous prime is 1938100973. The next prime is 1938101021. The reversal of 1938101020 is 201018391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938101021) 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, 267105 + ... + 274264.

It is an arithmetic number, because the mean of its divisors is an integer number (170531550).

Almost surely, 2^1938101020 is an apocalyptic number.

1938101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1938101020 is an abundant number, since it is smaller than the sum of its proper divisors (2154656180).

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

1938101020 is a wasteful number, since it uses less digits than its factorization.

1938101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541557 (or 541555 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1938101020 is about 44023.8687532116. The cubic root of 1938101020 is about 1246.7866307516.

The spelling of 1938101020 in words is "one billion, nine hundred thirty-eight million, one hundred one thousand, twenty".