385331516 has 12 divisors (see below), whose sum is σ = 674630040. Its totient is φ = 192580080.

The previous prime is 385331509. The next prime is 385331561. The reversal of 385331516 is 615133583.

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, 10706 + ... + 29753.

It is an arithmetic number, because the mean of its divisors is an integer number (56219170).

Almost surely, 2^385331516 is an apocalyptic number.

It is an amenable number.

385331516 is a deficient number, since it is larger than the sum of its proper divisors (289298524).

385331516 is a wasteful number, since it uses less digits than its factorization.

385331516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42844 (or 42842 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 385331516 is about 19629.8628624858. The cubic root of 385331516 is about 727.6873808685.

The spelling of 385331516 in words is "three hundred eighty-five million, three hundred thirty-one thousand, five hundred sixteen".