385658306220 has 96 divisors (see below), whose sum is σ = 1185917241600. Its totient is φ = 92865429760.

The previous prime is 385658306179. The next prime is 385658306227. The reversal of 385658306220 is 22603856583.

It is a self number, because there is not a number n which added to its sum of digits gives 385658306220.

It is not an unprimeable number, because it can be changed into a prime (385658306227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1862502 + ... + 2059181.

It is an arithmetic number, because the mean of its divisors is an integer number (12353304600).

Almost surely, 2^385658306220 is an apocalyptic number.

385658306220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

385658306220 is an abundant number, since it is smaller than the sum of its proper divisors (800258935380).

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

385658306220 is a wasteful number, since it uses less digits than its factorization.

385658306220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3921855 (or 3921853 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 385658306220 in words is "three hundred eighty-five billion, six hundred fifty-eight million, three hundred six thousand, two hundred twenty".