385520052 has 12 divisors (see below), whose sum is σ = 899546816. Its totient is φ = 128506680.

The previous prime is 385520041. The next prime is 385520053. The reversal of 385520052 is 250025583.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385520053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16063324 + ... + 16063347.

Almost surely, 2^385520052 is an apocalyptic number.

It is an amenable number.

385520052 is an abundant number, since it is smaller than the sum of its proper divisors (514026764).

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

385520052 is a wasteful number, since it uses less digits than its factorization.

385520052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32126678 (or 32126676 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 385520052 is about 19634.6645502285. The cubic root of 385520052 is about 727.8060431049.

The spelling of 385520052 in words is "three hundred eighty-five million, five hundred twenty thousand, fifty-two".