381538248 has 128 divisors (see below), whose sum is σ = 1186725120. Its totient is φ = 99532800.

The previous prime is 381538247. The next prime is 381538271. The reversal of 381538248 is 842835183.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (381538243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210948 + ... + 212748.

It is an arithmetic number, because the mean of its divisors is an integer number (9271290).

Almost surely, 2^381538248 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 381538248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593362560).

381538248 is an abundant number, since it is smaller than the sum of its proper divisors (805186872).

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

381538248 is a wasteful number, since it uses less digits than its factorization.

381538248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927 (or 1923 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 381538248 is about 19533.0040700349. The cubic root of 381538248 is about 725.2916768521.

The spelling of 381538248 in words is "three hundred eighty-one million, five hundred thirty-eight thousand, two hundred forty-eight".