40106631 has 8 divisors (see below), whose sum is σ = 54920944. Its totient is φ = 26015040.

The previous prime is 40106629. The next prime is 40106683. The reversal of 40106631 is 13660104.

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

It is not a de Polignac number, because 40106631 - 2¹ = 40106629 is a prime.

It is a super-2 number, since 2×40106631² = 3217083700340322, 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 = 40106598 and 40106607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40102631) 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, 180550 + ... + 180771.

It is an arithmetic number, because the mean of its divisors is an integer number (6865118).

Almost surely, 2^40106631 is an apocalyptic number.

40106631 is a deficient number, since it is larger than the sum of its proper divisors (14814313).

40106631 is a wasteful number, since it uses less digits than its factorization.

40106631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361361.

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

The square root of 40106631 is about 6332.9796304741. The cubic root of 40106631 is about 342.2988137721.

Adding to 40106631 its reverse (13660104), we get a palindrome (53766735).

The spelling of 40106631 in words is "forty million, one hundred six thousand, six hundred thirty-one".