385397870 has 64 divisors (see below), whose sum is σ = 820048320. Its totient is φ = 128563200.

The previous prime is 385397819. The next prime is 385397893. The reversal of 385397870 is 78793583.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 258086 + ... + 259574.

It is an arithmetic number, because the mean of its divisors is an integer number (12813255).

Almost surely, 2^385397870 is an apocalyptic number.

385397870 is an abundant number, since it is smaller than the sum of its proper divisors (434650450).

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

385397870 is a wasteful number, since it uses less digits than its factorization.

385397870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 385397870 is about 19631.5529187072. The cubic root of 385397870 is about 727.7291476721.

The spelling of 385397870 in words is "three hundred eighty-five million, three hundred ninety-seven thousand, eight hundred seventy".