381466 has 8 divisors (see below), whose sum is σ = 592020. Its totient is φ = 184128.

The previous prime is 381461. The next prime is 381467. The reversal of 381466 is 664183.

It can be written as a sum of positive squares in 2 ways, for example, as 335241 + 46225 = 579^2 + 215^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3231 + ... + 3346.

2³⁸¹⁴⁶⁶ is an apocalyptic number.

381466 is a deficient number, since it is larger than the sum of its proper divisors (210554).

381466 is a wasteful number, since it uses less digits than its factorization.

381466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6608.

The product of its digits is 3456, while the sum is 28.

The square root of 381466 is about 617.6293386814. The cubic root of 381466 is about 72.5245893604.

The spelling of 381466 in words is "three hundred eighty-one thousand, four hundred sixty-six".