381603383 has 8 divisors (see below), whose sum is σ = 436256640. Its totient is φ = 326984760.

The previous prime is 381603349. The next prime is 381603401. The reversal of 381603383 is 383306183.

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 381603383 - 2⁶ = 381603319 is a prime.

It is a super-2 number, since 2×381603383² = 291242283834089378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381603283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22388 + ... + 35558.

It is an arithmetic number, because the mean of its divisors is an integer number (54532080).

Almost surely, 2^381603383 is an apocalyptic number.

381603383 is a deficient number, since it is larger than the sum of its proper divisors (54653257).

381603383 is a wasteful number, since it uses less digits than its factorization.

381603383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17317.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 381603383 is about 19534.6713051436. The cubic root of 381603383 is about 725.3329476688.

The spelling of 381603383 in words is "three hundred eighty-one million, six hundred three thousand, three hundred eighty-three".