381814455 has 32 divisors (see below), whose sum is σ = 675590400. Its totient is φ = 182580480.

The previous prime is 381814439. The next prime is 381814463. The reversal of 381814455 is 554418183.

It is not a de Polignac number, because 381814455 - 2⁴ = 381814439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3805 + ... + 27894.

It is an arithmetic number, because the mean of its divisors is an integer number (21112200).

Almost surely, 2^381814455 is an apocalyptic number.

381814455 is a deficient number, since it is larger than the sum of its proper divisors (293775945).

381814455 is a wasteful number, since it uses less digits than its factorization.

381814455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31791.

The product of its digits is 76800, while the sum is 39.

The square root of 381814455 is about 19540.0730551347. The cubic root of 381814455 is about 725.4666547798.

The spelling of 381814455 in words is "three hundred eighty-one million, eight hundred fourteen thousand, four hundred fifty-five".