385512870 has 16 divisors (see below), whose sum is σ = 925230960. Its totient is φ = 102803424.

The previous prime is 385512851. The next prime is 385512877. The reversal of 385512870 is 78215583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385512877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6425185 + ... + 6425244.

It is an arithmetic number, because the mean of its divisors is an integer number (57826935).

Almost surely, 2^385512870 is an apocalyptic number.

385512870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

385512870 is an abundant number, since it is smaller than the sum of its proper divisors (539718090).

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

385512870 is a wasteful number, since it uses less digits than its factorization.

385512870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12850439.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 385512870 is about 19634.4816585516. The cubic root of 385512870 is about 727.8015235515.

The spelling of 385512870 in words is "three hundred eighty-five million, five hundred twelve thousand, eight hundred seventy".