381508152 has 64 divisors (see below), whose sum is σ = 1026496800. Its totient is φ = 117719040.

The previous prime is 381508139. The next prime is 381508159. The reversal of 381508152 is 251805183.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381508159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17224 + ... + 32552.

Almost surely, 2^381508152 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 381508152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (513248400).

381508152 is an abundant number, since it is smaller than the sum of its proper divisors (644988648).

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

381508152 is a wasteful number, since it uses less digits than its factorization.

381508152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15416 (or 15412 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 381508152 is about 19532.2336664294. The cubic root of 381508152 is about 725.2726058482.

The spelling of 381508152 in words is "three hundred eighty-one million, five hundred eight thousand, one hundred fifty-two".