1938852045 has 128 divisors (see below), whose sum is σ = 3927813120. Its totient is φ = 911471616.

The previous prime is 1938852031. The next prime is 1938852077. The reversal of 1938852045 is 5402588391.

1938852045 is a `hidden beast` number, since 1 + 9 + 3 + 88 + 520 + 45 = 666.

It is not a de Polignac number, because 1938852045 - 2⁹ = 1938851533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3269269 + ... + 3269861.

It is an arithmetic number, because the mean of its divisors is an integer number (30686040).

Almost surely, 2^1938852045 is an apocalyptic number.

1938852045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1938852045 is an abundant number, since it is smaller than the sum of its proper divisors (1988961075).

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

1938852045 is an equidigital number, since it uses as much as digits as its factorization.

1938852045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 1938852045 is about 44032.3976748939. The cubic root of 1938852045 is about 1246.9476555548.

The spelling of 1938852045 in words is "one billion, nine hundred thirty-eight million, eight hundred fifty-two thousand, forty-five".