381662 has 8 divisors (see below), whose sum is σ = 597456. Its totient is φ = 182512.

The previous prime is 381659. The next prime is 381673. The reversal of 381662 is 266183.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4103 + ... + 4194.

It is an arithmetic number, because the mean of its divisors is an integer number (74682).

2³⁸¹⁶⁶² is an apocalyptic number.

381662 is a deficient number, since it is larger than the sum of its proper divisors (215794).

381662 is a wasteful number, since it uses less digits than its factorization.

381662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8322.

The product of its digits is 1728, while the sum is 26.

The square root of 381662 is about 617.7879895239. The cubic root of 381662 is about 72.5370084538.

The spelling of 381662 in words is "three hundred eighty-one thousand, six hundred sixty-two".