381852045 has 48 divisors (see below), whose sum is σ = 702814320. Its totient is φ = 191127552.

The previous prime is 381852007. The next prime is 381852047. The reversal of 381852045 is 540258183.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 79524 + 381772521 = 282^2 + 19539^2 .

It is not a de Polignac number, because 381852045 - 2¹¹ = 381849997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381852047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 471601 + ... + 472409.

It is an arithmetic number, because the mean of its divisors is an integer number (14641965).

Almost surely, 2^381852045 is an apocalyptic number.

It is an amenable number.

381852045 is a deficient number, since it is larger than the sum of its proper divisors (320962275).

381852045 is a wasteful number, since it uses less digits than its factorization.

381852045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454 (or 1451 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 381852045 is about 19541.0349009463. The cubic root of 381852045 is about 725.4904616283.

The spelling of 381852045 in words is "three hundred eighty-one million, eight hundred fifty-two thousand, forty-five".