385440538 has 8 divisors (see below), whose sum is σ = 660755232. Its totient is φ = 165188796.

The previous prime is 385440527. The next prime is 385440553. The reversal of 385440538 is 835044583.

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

It is a self number, because there is not a number n which added to its sum of digits gives 385440538.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13765720 + ... + 13765747.

It is an arithmetic number, because the mean of its divisors is an integer number (82594404).

Almost surely, 2^385440538 is an apocalyptic number.

385440538 is a deficient number, since it is larger than the sum of its proper divisors (275314694).

385440538 is a wasteful number, since it uses less digits than its factorization.

385440538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27531476.

The product of its (nonzero) digits is 230400, while the sum is 40.

The square root of 385440538 is about 19632.6396085702. The cubic root of 385440538 is about 727.7560026911.

The spelling of 385440538 in words is "three hundred eighty-five million, four hundred forty thousand, five hundred thirty-eight".