1938345132 has 12 divisors (see below), whose sum is σ = 4522805336. Its totient is φ = 646115040.

The previous prime is 1938345053. The next prime is 1938345137. The reversal of 1938345132 is 2315438391.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1938345137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80764369 + ... + 80764392.

Almost surely, 2^1938345132 is an apocalyptic number.

1938345132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1938345132 is an abundant number, since it is smaller than the sum of its proper divisors (2584460204).

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

1938345132 is a wasteful number, since it uses less digits than its factorization.

1938345132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161528768 (or 161528766 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 1938345132 is about 44026.6411619147. The cubic root of 1938345132 is about 1246.8389745661.

The spelling of 1938345132 in words is "one billion, nine hundred thirty-eight million, three hundred forty-five thousand, one hundred thirty-two".