381853395 has 96 divisors (see below), whose sum is σ = 830928384. Its totient is φ = 157593600.

The previous prime is 381853309. The next prime is 381853399. The reversal of 381853395 is 593358183.

381853395 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 381853395 - 2⁸ = 381853139 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 381853395.

It is not an unprimeable number, because it can be changed into a prime (381853399) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 668460 + ... + 669030.

It is an arithmetic number, because the mean of its divisors is an integer number (8655504).

Almost surely, 2^381853395 is an apocalyptic number.

381853395 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

381853395 is an abundant number, since it is smaller than the sum of its proper divisors (449074989).

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

381853395 is a wasteful number, since it uses less digits than its factorization.

381853395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 790 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 381853395 is about 19541.0694436103. The cubic root of 381853395 is about 725.4913165938.

It can be divided in two parts, 381 and 853395, that added together give a square (853776 = 924²).

The spelling of 381853395 in words is "three hundred eighty-one million, eight hundred fifty-three thousand, three hundred ninety-five".