381332015 has 8 divisors (see below), whose sum is σ = 484516080. Its totient is φ = 287120512.

The previous prime is 381331997. The next prime is 381332047. The reversal of 381332015 is 510233183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381332015 - 2¹⁴ = 381315631 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2243045 + ... + 2243214.

It is an arithmetic number, because the mean of its divisors is an integer number (60564510).

Almost surely, 2^381332015 is an apocalyptic number.

381332015 is a deficient number, since it is larger than the sum of its proper divisors (103184065).

381332015 is a wasteful number, since it uses less digits than its factorization.

381332015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4486281.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 381332015 is about 19527.7242657715. The cubic root of 381332015 is about 725.1609725799.

Adding to 381332015 its reverse (510233183), we get a palindrome (891565198).

The spelling of 381332015 in words is "three hundred eighty-one million, three hundred thirty-two thousand, fifteen".