385216392 has 32 divisors (see below), whose sum is σ = 1050590880. Its totient is φ = 116732160.

The previous prime is 385216357. The next prime is 385216411. The reversal of 385216392 is 293612583.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 385216392.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729313 + ... + 729840.

It is an arithmetic number, because the mean of its divisors is an integer number (32830965).

Almost surely, 2^385216392 is an apocalyptic number.

It is an amenable number.

385216392 is an abundant number, since it is smaller than the sum of its proper divisors (665374488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385216392 is a wasteful number, since it uses less digits than its factorization.

385216392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459173 (or 1459169 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 385216392 is about 19626.9302744978. The cubic root of 385216392 is about 727.6149042063.

The spelling of 385216392 in words is "three hundred eighty-five million, two hundred sixteen thousand, three hundred ninety-two".