388257323 has 4 divisors (see below), whose sum is σ = 393725808. Its totient is φ = 382788840.

The previous prime is 388257313. The next prime is 388257371. The reversal of 388257323 is 323752883.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 388257323 - 2¹⁰ = 388256299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388257313) 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, 2734136 + ... + 2734277.

It is an arithmetic number, because the mean of its divisors is an integer number (98431452).

Almost surely, 2^388257323 is an apocalyptic number.

388257323 is a deficient number, since it is larger than the sum of its proper divisors (5468485).

388257323 is an equidigital number, since it uses as much as digits as its factorization.

388257323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5468484.

The product of its digits is 241920, while the sum is 41.

The square root of 388257323 is about 19704.2463190044. The cubic root of 388257323 is about 729.5245061367.

The spelling of 388257323 in words is "three hundred eighty-eight million, two hundred fifty-seven thousand, three hundred twenty-three".