386524242 has 48 divisors (see below), whose sum is σ = 911241240. Its totient is φ = 117697536.

The previous prime is 386524231. The next prime is 386524249. The reversal of 386524242 is 242425683.

It can be written as a sum of positive squares in 4 ways, for example, as 312547041 + 73977201 = 17679^2 + 8601^2 .

It is a junction number, because it is equal to n+sod(n) for n = 386524197 and 386524206.

It is not an unprimeable number, because it can be changed into a prime (386524249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14184 + ... + 31212.

Almost surely, 2^386524242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386524242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455620620).

386524242 is an abundant number, since it is smaller than the sum of its proper divisors (524716998).

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

386524242 is a wasteful number, since it uses less digits than its factorization.

386524242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17147 (or 17144 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 386524242 is about 19660.2197851397. The cubic root of 386524242 is about 728.4374170061.

The spelling of 386524242 in words is "three hundred eighty-six million, five hundred twenty-four thousand, two hundred forty-two".