381602 has 12 divisors (see below), whose sum is σ = 620370. Its totient is φ = 175968.

The previous prime is 381569. The next prime is 381607. The reversal of 381602 is 206183.

It can be written as a sum of positive squares in 3 ways, for example, as 101761 + 279841 = 319^2 + 529^2 .

It is not an unprimeable number, because it can be changed into a prime (381607) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 227 + ... + 902.

2³⁸¹⁶⁰² is an apocalyptic number.

381602 is a deficient number, since it is larger than the sum of its proper divisors (238768).

381602 is a wasteful number, since it uses less digits than its factorization.

381602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 381602 is about 617.7394272669. The cubic root of 381602 is about 72.5332071422.

Adding to 381602 its reverse (206183), we get a palindrome (587785).

The spelling of 381602 in words is "three hundred eighty-one thousand, six hundred two".