40106629 has 2 divisors, whose sum is σ = 40106630. Its totient is φ = 40106628.

The previous prime is 40106609. The next prime is 40106683. The reversal of 40106629 is 92660104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35164900 + 4941729 = 5930^2 + 2223^2 .

It is a cyclic number.

It is not a de Polignac number, because 40106629 - 2⁵ = 40106597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40106597 and 40106606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40106609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20053314 + 20053315.

It is an arithmetic number, because the mean of its divisors is an integer number (20053315).

Almost surely, 2^40106629 is an apocalyptic number.

It is an amenable number.

40106629 is a deficient number, since it is larger than the sum of its proper divisors (1).

40106629 is an equidigital number, since it uses as much as digits as its factorization.

40106629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 40106629 is about 6332.9794725706. The cubic root of 40106629 is about 342.2988080823.

The spelling of 40106629 in words is "forty million, one hundred six thousand, six hundred twenty-nine".