381547008 has 120 divisors (see below), whose sum is σ = 1137117696. Its totient is φ = 123033600.

The previous prime is 381547007. The next prime is 381547021. The reversal of 381547008 is 800745183.

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

It is not an unprimeable number, because it can be changed into a prime (381547003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141513 + ... + 144183.

Almost surely, 2^381547008 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 381547008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568558848).

381547008 is an abundant number, since it is smaller than the sum of its proper divisors (755570688).

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

381547008 is a wasteful number, since it uses less digits than its factorization.

381547008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726 (or 2707 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 381547008 is about 19533.2283046096. The cubic root of 381547008 is about 725.2972276337.

The spelling of 381547008 in words is "three hundred eighty-one million, five hundred forty-seven thousand, eight".