385246856 has 8 divisors (see below), whose sum is σ = 722337870. Its totient is φ = 192623424.

The previous prime is 385246853. The next prime is 385246867. The reversal of 385246856 is 658642583.

It can be written as a sum of positive squares in only one way, i.e., 283922500 + 101324356 = 16850^2 + 10066^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 385246856.

It is not an unprimeable number, because it can be changed into a prime (385246853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24077921 + ... + 24077936.

Almost surely, 2^385246856 is an apocalyptic number.

It is an amenable number.

385246856 is a deficient number, since it is larger than the sum of its proper divisors (337091014).

385246856 is a wasteful number, since it uses less digits than its factorization.

385246856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48155863 (or 48155859 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 47.

The square root of 385246856 is about 19627.7063356878. The cubic root of 385246856 is about 727.6340843144.

The spelling of 385246856 in words is "three hundred eighty-five million, two hundred forty-six thousand, eight hundred fifty-six".