381948582 has 32 divisors (see below), whose sum is σ = 789719040. Its totient is φ = 123024960.

The previous prime is 381948577. The next prime is 381948587. The reversal of 381948582 is 285849183.

It is an interprime number because it is at equal distance from previous prime (381948577) and next prime (381948587).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381948587) 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, 181794 + ... + 183882.

It is an arithmetic number, because the mean of its divisors is an integer number (24678720).

Almost surely, 2^381948582 is an apocalyptic number.

381948582 is an abundant number, since it is smaller than the sum of its proper divisors (407770458).

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

381948582 is a wasteful number, since it uses less digits than its factorization.

381948582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108.

The product of its digits is 552960, while the sum is 48.

The square root of 381948582 is about 19543.5048545546. The cubic root of 381948582 is about 725.5515941816.

The spelling of 381948582 in words is "three hundred eighty-one million, nine hundred forty-eight thousand, five hundred eighty-two".