385528437 has 16 divisors (see below), whose sum is σ = 652746880. Its totient is φ = 220301856.

The previous prime is 385528433. The next prime is 385528447. The reversal of 385528437 is 734825583.

385528437 is a `hidden beast` number, since 3 + 85 + 528 + 43 + 7 = 666.

It is not a de Polignac number, because 385528437 - 2² = 385528433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 385528392 and 385528401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385528433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1019728 + ... + 1020105.

It is an arithmetic number, because the mean of its divisors is an integer number (40796680).

Almost surely, 2^385528437 is an apocalyptic number.

It is an amenable number.

385528437 is a deficient number, since it is larger than the sum of its proper divisors (267218443).

385528437 is a wasteful number, since it uses less digits than its factorization.

385528437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039849 (or 2039843 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 385528437 is about 19634.8780744878. The cubic root of 385528437 is about 727.8113196220.

The spelling of 385528437 in words is "three hundred eighty-five million, five hundred twenty-eight thousand, four hundred thirty-seven".