385762280 has 16 divisors (see below), whose sum is σ = 867965220. Its totient is φ = 154304896.

The previous prime is 385762261. The next prime is 385762291. The reversal of 385762280 is 82267583.

It can be written as a sum of positive squares in 2 ways, for example, as 385493956 + 268324 = 19634^2 + 518^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4821989 + ... + 4822068.

Almost surely, 2^385762280 is an apocalyptic number.

It is an amenable number.

385762280 is an abundant number, since it is smaller than the sum of its proper divisors (482202940).

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

385762280 is a wasteful number, since it uses less digits than its factorization.

385762280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9644068 (or 9644064 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 385762280 is about 19640.8319579391. The cubic root of 385762280 is about 727.9584416562.

The spelling of 385762280 in words is "three hundred eighty-five million, seven hundred sixty-two thousand, two hundred eighty".