385566308 has 24 divisors (see below), whose sum is σ = 690129720. Its totient is φ = 188414720.

The previous prime is 385566277. The next prime is 385566317. The reversal of 385566308 is 803665583.

It can be written as a sum of positive squares in 4 ways, for example, as 59474944 + 326091364 = 7712^2 + 18058^2 .

It is a super-2 number, since 2×385566308² = 297322755729501728, 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, 53648 + ... + 60408.

It is an arithmetic number, because the mean of its divisors is an integer number (28755405).

Almost surely, 2^385566308 is an apocalyptic number.

It is an amenable number.

385566308 is a deficient number, since it is larger than the sum of its proper divisors (304563412).

385566308 is a wasteful number, since it uses less digits than its factorization.

385566308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7087 (or 7085 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 385566308 is about 19635.8424316351. The cubic root of 385566308 is about 727.8351501512.

The spelling of 385566308 in words is "three hundred eighty-five million, five hundred sixty-six thousand, three hundred eight".