381367481 has 8 divisors (see below), whose sum is σ = 417030528. Its totient is φ = 345870000.

The previous prime is 381367463. The next prime is 381367499. The reversal of 381367481 is 184763183.

It is an interprime number because it is at equal distance from previous prime (381367463) and next prime (381367499).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381367481 is a prime.

It is a super-2 number, since 2×381367481² = 290882311128570722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381367451) 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 7 ways as a sum of consecutive naturals, for example, 36545 + ... + 45806.

It is an arithmetic number, because the mean of its divisors is an integer number (52128816).

Almost surely, 2^381367481 is an apocalyptic number.

It is an amenable number.

381367481 is a deficient number, since it is larger than the sum of its proper divisors (35663047).

381367481 is a wasteful number, since it uses less digits than its factorization.

381367481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82783.

The product of its digits is 96768, while the sum is 41.

The square root of 381367481 is about 19528.6323381849. The cubic root of 381367481 is about 725.1834532186.

The spelling of 381367481 in words is "three hundred eighty-one million, three hundred sixty-seven thousand, four hundred eighty-one".