385188234 has 16 divisors (see below), whose sum is σ = 775104672. Its totient is φ = 127608048.

The previous prime is 385188229. The next prime is 385188247. The reversal of 385188234 is 432881583.

It is a super-2 number, since 2×385188234² = 296739951224077512, which contains 22 as substring.

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, 195949 + ... + 197904.

It is an arithmetic number, because the mean of its divisors is an integer number (48444042).

Almost surely, 2^385188234 is an apocalyptic number.

385188234 is an abundant number, since it is smaller than the sum of its proper divisors (389916438).

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

385188234 is a wasteful number, since it uses less digits than its factorization.

385188234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394021.

The product of its digits is 184320, while the sum is 42.

The square root of 385188234 is about 19626.2129306700. The cubic root of 385188234 is about 727.5971750545.

The spelling of 385188234 in words is "three hundred eighty-five million, one hundred eighty-eight thousand, two hundred thirty-four".