385555556 has 12 divisors (see below), whose sum is σ = 696487680. Its totient is φ = 186559080.

The previous prime is 385555537. The next prime is 385555567. The reversal of 385555556 is 655555583.

It is a self number, because there is not a number n which added to its sum of digits gives 385555556.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1554536 + ... + 1554783.

It is an arithmetic number, because the mean of its divisors is an integer number (58040640).

Almost surely, 2^385555556 is an apocalyptic number.

It is an amenable number.

385555556 is a deficient number, since it is larger than the sum of its proper divisors (310932124).

385555556 is a wasteful number, since it uses less digits than its factorization.

385555556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109354 (or 3109352 counting only the distinct ones).

The product of its digits is 2250000, while the sum is 47.

The square root of 385555556 is about 19635.5686446815. The cubic root of 385555556 is about 727.8283845564.

The spelling of 385555556 in words is "three hundred eighty-five million, five hundred fifty-five thousand, five hundred fifty-six".