381633715 has 16 divisors (see below), whose sum is σ = 497617920. Its totient is φ = 279905760.

The previous prime is 381633713. The next prime is 381633727. The reversal of 381633715 is 517336183.

It is a happy number.

It is not a de Polignac number, because 381633715 - 2¹ = 381633713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (381633713) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 61849 + ... + 67738.

It is an arithmetic number, because the mean of its divisors is an integer number (31101120).

Almost surely, 2^381633715 is an apocalyptic number.

381633715 is a deficient number, since it is larger than the sum of its proper divisors (115984205).

381633715 is a wasteful number, since it uses less digits than its factorization.

381633715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129642.

The product of its digits is 45360, while the sum is 37.

The square root of 381633715 is about 19535.4476529206. The cubic root of 381633715 is about 725.3521650178.

Adding to 381633715 its reverse (517336183), we get a palindrome (898969898).

The spelling of 381633715 in words is "three hundred eighty-one million, six hundred thirty-three thousand, seven hundred fifteen".