385892020 has 12 divisors (see below), whose sum is σ = 810373284. Its totient is φ = 154356800.

The previous prime is 385891963. The next prime is 385892057. The reversal of 385892020 is 20298583.

It can be written as a sum of positive squares in 2 ways, for example, as 87086224 + 298805796 = 9332^2 + 17286^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9647281 + ... + 9647320.

It is an arithmetic number, because the mean of its divisors is an integer number (67531107).

Almost surely, 2^385892020 is an apocalyptic number.

It is an amenable number.

385892020 is an abundant number, since it is smaller than the sum of its proper divisors (424481264).

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

385892020 is a wasteful number, since it uses less digits than its factorization.

385892020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19294610 (or 19294608 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 385892020 is about 19644.1344935327. The cubic root of 385892020 is about 728.0400417737.

The spelling of 385892020 in words is "three hundred eighty-five million, eight hundred ninety-two thousand, twenty".