381958345 has 16 divisors (see below), whose sum is σ = 469117440. Its totient is φ = 298468800.

The previous prime is 381958307. The next prime is 381958417. The reversal of 381958345 is 543859183.

It is not a de Polignac number, because 381958345 - 2¹⁷ = 381827273 is a prime.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 381958295 and 381958304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33760 + ... + 43630.

It is an arithmetic number, because the mean of its divisors is an integer number (29319840).

Almost surely, 2^381958345 is an apocalyptic number.

It is an amenable number.

381958345 is a deficient number, since it is larger than the sum of its proper divisors (87159095).

381958345 is a wasteful number, since it uses less digits than its factorization.

381958345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10056.

The product of its digits is 518400, while the sum is 46.

The square root of 381958345 is about 19543.7546290369. The cubic root of 381958345 is about 725.5577760781.

The spelling of 381958345 in words is "three hundred eighty-one million, nine hundred fifty-eight thousand, three hundred forty-five".