381774 has 8 divisors (see below), whose sum is σ = 763560. Its totient is φ = 127256.

The previous prime is 381761. The next prime is 381791. The reversal of 381774 is 477183.

It is a happy number.

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

381774 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31809 + ... + 31820.

It is an arithmetic number, because the mean of its divisors is an integer number (95445).

2³⁸¹⁷⁷⁴ is an apocalyptic number.

381774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

381774 is a wasteful number, since it uses less digits than its factorization.

381774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63634.

The product of its digits is 4704, while the sum is 30.

The square root of 381774 is about 617.8786288585. The cubic root of 381774 is about 72.5441031697.

The spelling of 381774 in words is "three hundred eighty-one thousand, seven hundred seventy-four".