381680935 has 8 divisors (see below), whose sum is σ = 462739536. Its totient is φ = 302196480.

The previous prime is 381680921. The next prime is 381680939. The reversal of 381680935 is 539086183.

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

It is not a de Polignac number, because 381680935 - 2⁷ = 381680807 is a prime.

It is a super-2 number, since 2×381680935² = 291360672284948450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381680891 and 381680900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381680939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393001 + ... + 393970.

It is an arithmetic number, because the mean of its divisors is an integer number (57842442).

Almost surely, 2^381680935 is an apocalyptic number.

381680935 is a deficient number, since it is larger than the sum of its proper divisors (81058601).

381680935 is an equidigital number, since it uses as much as digits as its factorization.

381680935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787073.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 381680935 is about 19536.6561877922. The cubic root of 381680935 is about 725.3820800168.

The spelling of 381680935 in words is "three hundred eighty-one million, six hundred eighty thousand, nine hundred thirty-five".