381803455 has 16 divisors (see below), whose sum is σ = 508291200. Its totient is φ = 272966560.

The previous prime is 381803449. The next prime is 381803479. The reversal of 381803455 is 554308183.

It is not a de Polignac number, because 381803455 - 2³ = 381803447 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 55585 + ... + 62074.

It is an arithmetic number, because the mean of its divisors is an integer number (31768200).

Almost surely, 2^381803455 is an apocalyptic number.

381803455 is a deficient number, since it is larger than the sum of its proper divisors (126487745).

381803455 is a wasteful number, since it uses less digits than its factorization.

381803455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117734.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 381803455 is about 19539.7915802600. The cubic root of 381803455 is about 725.4596878619.

The spelling of 381803455 in words is "three hundred eighty-one million, eight hundred three thousand, four hundred fifty-five".