380631 has 8 divisors (see below), whose sum is σ = 514944. Its totient is φ = 250040.

The previous prime is 380629. The next prime is 380641. The reversal of 380631 is 136083.

380631 = T₆₆ + T₆₇ + ... + T₁₃₆.

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

It is a cyclic number.

It is not a de Polignac number, because 380631 - 2¹ = 380629 is a prime.

It is a super-2 number, since 2×380631² = 289759916322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 380598 and 380607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681 + ... + 1106.

It is an arithmetic number, because the mean of its divisors is an integer number (64368).

2³⁸⁰⁶³¹ is an apocalyptic number.

380631 is a deficient number, since it is larger than the sum of its proper divisors (134313).

380631 is a wasteful number, since it uses less digits than its factorization.

380631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 380631 is about 616.9529965889. The cubic root of 380631 is about 72.4716337701.

The spelling of 380631 in words is "three hundred eighty thousand, six hundred thirty-one".