381198528 has 112 divisors (see below), whose sum is σ = 1139952000. Its totient is φ = 124879104.

The previous prime is 381198509. The next prime is 381198541. The reversal of 381198528 is 825891183.

It is a happy number.

381198528 is a `hidden beast` number, since 3 + 8 + 119 + 8 + 528 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100083 + ... + 103821.

Almost surely, 2^381198528 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 381198528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569976000).

381198528 is an abundant number, since it is smaller than the sum of its proper divisors (758753472).

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

381198528 is a wasteful number, since it uses less digits than its factorization.

381198528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3819 (or 3803 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 381198528 is about 19524.3060824194. The cubic root of 381198528 is about 725.0763474097.

The spelling of 381198528 in words is "three hundred eighty-one million, one hundred ninety-eight thousand, five hundred twenty-eight".