381746 has 8 divisors (see below), whose sum is σ = 576624. Its totient is φ = 189540.

The previous prime is 381739. The next prime is 381749. The reversal of 381746 is 647183.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (381749) by changing a digit.

381746 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260 + ... + 911.

It is an arithmetic number, because the mean of its divisors is an integer number (72078).

2³⁸¹⁷⁴⁶ is an apocalyptic number.

381746 is a deficient number, since it is larger than the sum of its proper divisors (194878).

381746 is a wasteful number, since it uses less digits than its factorization.

381746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336.

The product of its digits is 4032, while the sum is 29.

The square root of 381746 is about 617.8559702714. The cubic root of 381746 is about 72.5423296208.

The spelling of 381746 in words is "three hundred eighty-one thousand, seven hundred forty-six".