10381631 has 8 divisors (see below), whose sum is σ = 11239200. Its totient is φ = 9532512.

The previous prime is 10381607. The next prime is 10381661. The reversal of 10381631 is 13618301.

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 10381631 - 2²² = 6187327 is a prime.

It is a super-2 number, since 2×10381631² = 215556524440322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10381597 and 10381606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10381661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581 + ... + 4593.

It is an arithmetic number, because the mean of its divisors is an integer number (1404900).

Almost surely, 2^10381631 is an apocalyptic number.

10381631 is a deficient number, since it is larger than the sum of its proper divisors (857569).

10381631 is a wasteful number, since it uses less digits than its factorization.

10381631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4225.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 10381631 is about 3222.0538480913. The cubic root of 10381631 is about 218.1499893648.

Adding to 10381631 its reverse (13618301), we get a palindrome (23999932).

The spelling of 10381631 in words is "ten million, three hundred eighty-one thousand, six hundred thirty-one".