385709434 has 8 divisors (see below), whose sum is σ = 631160928. Its totient is φ = 175322460.

The previous prime is 385709431. The next prime is 385709453. The reversal of 385709434 is 434907583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (385709431) 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, 8766102 + ... + 8766145.

It is an arithmetic number, because the mean of its divisors is an integer number (78895116).

Almost surely, 2^385709434 is an apocalyptic number.

385709434 is a deficient number, since it is larger than the sum of its proper divisors (245451494).

385709434 is a wasteful number, since it uses less digits than its factorization.

385709434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17532260.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 385709434 is about 19639.4866022511. The cubic root of 385709434 is about 727.9251988617.

The spelling of 385709434 in words is "three hundred eighty-five million, seven hundred nine thousand, four hundred thirty-four".