385398612 has 36 divisors (see below), whose sum is σ = 979267380. Its totient is φ = 127798272.

The previous prime is 385398599. The next prime is 385398613. The reversal of 385398612 is 216893583.

It is a happy number.

385398612 is a `hidden beast` number, since 38 + 539 + 86 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29095236 + 356303376 = 5394^2 + 18876^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385398613) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 20787 + ... + 34682.

Almost surely, 2^385398612 is an apocalyptic number.

It is an amenable number.

385398612 is an abundant number, since it is smaller than the sum of its proper divisors (593868768).

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

385398612 is a wasteful number, since it uses less digits than its factorization.

385398612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55672 (or 55667 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 385398612 is about 19631.5718168465. The cubic root of 385398612 is about 727.7296147000.

The spelling of 385398612 in words is "three hundred eighty-five million, three hundred ninety-eight thousand, six hundred twelve".