381457852 has 48 divisors (see below), whose sum is σ = 725243904. Its totient is φ = 175032000.

The previous prime is 381457831. The next prime is 381457873. The reversal of 381457852 is 258754183.

It is an interprime number because it is at equal distance from previous prime (381457831) and next prime (381457873).

It is a junction number, because it is equal to n+sod(n) for n = 381457799 and 381457808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373102 + ... + 374122.

It is an arithmetic number, because the mean of its divisors is an integer number (15109248).

Almost surely, 2^381457852 is an apocalyptic number.

It is an amenable number.

381457852 is a deficient number, since it is larger than the sum of its proper divisors (343786052).

381457852 is a wasteful number, since it uses less digits than its factorization.

381457852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210 (or 1208 counting only the distinct ones).

The product of its digits is 268800, while the sum is 43.

The square root of 381457852 is about 19530.9460088343. The cubic root of 381457852 is about 725.2407298885.

The spelling of 381457852 in words is "three hundred eighty-one million, four hundred fifty-seven thousand, eight hundred fifty-two".