381671454 has 16 divisors (see below), whose sum is σ = 808245648. Its totient is φ = 119740032.

The previous prime is 381671441. The next prime is 381671489. The reversal of 381671454 is 454176183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1870837 + ... + 1871040.

It is an arithmetic number, because the mean of its divisors is an integer number (50515353).

Almost surely, 2^381671454 is an apocalyptic number.

381671454 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

381671454 is an abundant number, since it is smaller than the sum of its proper divisors (426574194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381671454 is a wasteful number, since it uses less digits than its factorization.

381671454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741899.

The product of its digits is 80640, while the sum is 39.

The square root of 381671454 is about 19536.4135398491. The cubic root of 381671454 is about 725.3760737746.

It can be divided in two parts, 38167 and 1454, that added together give a triangular number (39621 = T₂₈₁).

The spelling of 381671454 in words is "three hundred eighty-one million, six hundred seventy-one thousand, four hundred fifty-four".