385638930 has 48 divisors (see below), whose sum is σ = 1046260800. Its totient is φ = 98365344.

The previous prime is 385638887. The next prime is 385638937. The reversal of 385638930 is 39836583.

385638930 is a `hidden beast` number, since 3 + 8 + 5 + 638 + 9 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (385638937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91080 + ... + 95219.

It is an arithmetic number, because the mean of its divisors is an integer number (21797100).

Almost surely, 2^385638930 is an apocalyptic number.

385638930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

385638930 is an abundant number, since it is smaller than the sum of its proper divisors (660621870).

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

385638930 is a wasteful number, since it uses less digits than its factorization.

385638930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186335 (or 186332 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 385638930 is about 19637.6915649472. The cubic root of 385638930 is about 727.8808435680.

The spelling of 385638930 in words is "three hundred eighty-five million, six hundred thirty-eight thousand, nine hundred thirty".