380642 has 4 divisors (see below), whose sum is σ = 570966. Its totient is φ = 190320.

The previous prime is 380641. The next prime is 380651. The reversal of 380642 is 246083.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 246083 = 73 ⋅3371.

It can be written as a sum of positive squares in only one way, i.e., 203401 + 177241 = 451^2 + 421^2 .

It is not an unprimeable number, because it can be changed into a prime (380641) by changing a digit.

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 as a sum of consecutive naturals, namely, 95159 + ... + 95162.

2³⁸⁰⁶⁴² is an apocalyptic number.

380642 is a deficient number, since it is larger than the sum of its proper divisors (190324).

380642 is a wasteful number, since it uses less digits than its factorization.

380642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190323.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 380642 is about 616.9619113041. The cubic root of 380642 is about 72.4723318919.

The spelling of 380642 in words is "three hundred eighty thousand, six hundred forty-two".