385198520 has 32 divisors (see below), whose sum is σ = 990511200. Its totient is φ = 132067968.

The previous prime is 385198519. The next prime is 385198523. The reversal of 385198520 is 25891583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385198523) 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 7 ways as a sum of consecutive naturals, for example, 687575 + ... + 688134.

It is an arithmetic number, because the mean of its divisors is an integer number (30953475).

Almost surely, 2^385198520 is an apocalyptic number.

It is an amenable number.

385198520 is an abundant number, since it is smaller than the sum of its proper divisors (605312680).

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

385198520 is a wasteful number, since it uses less digits than its factorization.

385198520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375727 (or 1375723 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 385198520 is about 19626.4749764190. The cubic root of 385198520 is about 727.6036515399.

The spelling of 385198520 in words is "three hundred eighty-five million, one hundred ninety-eight thousand, five hundred twenty".