384357 has 4 divisors (see below), whose sum is σ = 512480. Its totient is φ = 256236.

The previous prime is 384343. The next prime is 384359. The reversal of 384357 is 753483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-384357 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64057 + ... + 64062.

It is an arithmetic number, because the mean of its divisors is an integer number (128120).

2³⁸⁴³⁵⁷ is an apocalyptic number.

It is an amenable number.

384357 is a deficient number, since it is larger than the sum of its proper divisors (128123).

384357 is a wasteful number, since it uses less digits than its factorization.

384357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128122.

The product of its digits is 10080, while the sum is 30.

The square root of 384357 is about 619.9653216108. The cubic root of 384357 is about 72.7073414606.

It can be divided in two parts, 384 and 357, that added together give a triangular number (741 = T₃₈).

The spelling of 384357 in words is "three hundred eighty-four thousand, three hundred fifty-seven".