381584124 has 36 divisors (see below), whose sum is σ = 965502720. Its totient is φ = 127070400.

The previous prime is 381584123. The next prime is 381584167. The reversal of 381584124 is 421485183.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381584123) 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 11 ways as a sum of consecutive naturals, for example, 36832 + ... + 46040.

It is an arithmetic number, because the mean of its divisors is an integer number (26819520).

Almost surely, 2^381584124 is an apocalyptic number.

It is an amenable number.

381584124 is an abundant number, since it is smaller than the sum of its proper divisors (583918596).

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

381584124 is a wasteful number, since it uses less digits than its factorization.

381584124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10370 (or 10365 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 381584124 is about 19534.1783548733. The cubic root of 381584124 is about 725.3207452768.

The spelling of 381584124 in words is "three hundred eighty-one million, five hundred eighty-four thousand, one hundred twenty-four".