381884152 has 32 divisors (see below), whose sum is σ = 776689200. Its totient is φ = 174979584.

The previous prime is 381884147. The next prime is 381884159. The reversal of 381884152 is 251488183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381884159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1248 + ... + 27664.

Almost surely, 2^381884152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381884152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388344600).

381884152 is an abundant number, since it is smaller than the sum of its proper divisors (394805048).

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

381884152 is a wasteful number, since it uses less digits than its factorization.

381884152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26575 (or 26571 counting only the distinct ones).

The product of its digits is 61440, while the sum is 40.

The square root of 381884152 is about 19541.8564113034. The cubic root of 381884152 is about 725.5107946951.

The spelling of 381884152 in words is "three hundred eighty-one million, eight hundred eighty-four thousand, one hundred fifty-two".