385993142 has 8 divisors (see below), whose sum is σ = 582876000. Its totient is φ = 191701144.

The previous prime is 385993123. The next prime is 385993169. The reversal of 385993142 is 241399583.

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

It is a junction number, because it is equal to n+sod(n) for n = 385993093 and 385993102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647342 + ... + 647937.

It is an arithmetic number, because the mean of its divisors is an integer number (72859500).

Almost surely, 2^385993142 is an apocalyptic number.

385993142 is a deficient number, since it is larger than the sum of its proper divisors (196882858).

385993142 is a wasteful number, since it uses less digits than its factorization.

385993142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295430.

The product of its digits is 233280, while the sum is 44.

The square root of 385993142 is about 19646.7081721086. The cubic root of 385993142 is about 728.1036298860.

The spelling of 385993142 in words is "three hundred eighty-five million, nine hundred ninety-three thousand, one hundred forty-two".