381144632 has 32 divisors (see below), whose sum is σ = 789022080. Its totient is φ = 171156960.

The previous prime is 381144619. The next prime is 381144637. The reversal of 381144632 is 236441183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381144637) 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, 18788 + ... + 33395.

It is an arithmetic number, because the mean of its divisors is an integer number (24656940).

Almost surely, 2^381144632 is an apocalyptic number.

It is an amenable number.

381144632 is an abundant number, since it is smaller than the sum of its proper divisors (407877448).

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

381144632 is a wasteful number, since it uses less digits than its factorization.

381144632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52283 (or 52279 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 381144632 is about 19522.9258053192. The cubic root of 381144632 is about 725.0421740032.

The spelling of 381144632 in words is "three hundred eighty-one million, one hundred forty-four thousand, six hundred thirty-two".