381782883 has 18 divisors (see below), whose sum is σ = 528561124. Its totient is φ = 245113568.

The previous prime is 381782881. The next prime is 381782899. The reversal of 381782883 is 388287183.

It is not a de Polignac number, because 381782883 - 2¹ = 381782881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381782881) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 981253 + ... + 981641.

Almost surely, 2^381782883 is an apocalyptic number.

381782883 is a deficient number, since it is larger than the sum of its proper divisors (146778241).

381782883 is an frugal number, since it uses more digits than its factorization.

381782883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 421 counting only the distinct ones).

The product of its digits is 516096, while the sum is 48.

The square root of 381782883 is about 19539.2651601845. The cubic root of 381782883 is about 725.4466580996.

Multiplying 381782883 by its sum of digits (48), we get a square (18325578384 = 135372²).

The spelling of 381782883 in words is "three hundred eighty-one million, seven hundred eighty-two thousand, eight hundred eighty-three".