385826457 has 4 divisors (see below), whose sum is σ = 514435280. Its totient is φ = 257217636.

The previous prime is 385826447. The next prime is 385826461. The reversal of 385826457 is 754628583.

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 not a de Polignac number, because 385826457 - 2⁶ = 385826393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385826437) 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, 64304407 + ... + 64304412.

It is an arithmetic number, because the mean of its divisors is an integer number (128608820).

Almost surely, 2^385826457 is an apocalyptic number.

It is an amenable number.

385826457 is a deficient number, since it is larger than the sum of its proper divisors (128608823).

385826457 is a wasteful number, since it uses less digits than its factorization.

385826457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128608822.

The product of its digits is 1612800, while the sum is 48.

The square root of 385826457 is about 19642.4656548001. The cubic root of 385826457 is about 727.9988081382.

The spelling of 385826457 in words is "three hundred eighty-five million, eight hundred twenty-six thousand, four hundred fifty-seven".