40106293 has 2 divisors, whose sum is σ = 40106294. Its totient is φ = 40106292.

The previous prime is 40106291. The next prime is 40106303. The reversal of 40106293 is 39260104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32913169 + 7193124 = 5737^2 + 2682^2 .

It is a cyclic number.

It is not a de Polignac number, because 40106293 - 2¹ = 40106291 is a prime.

Together with 40106291, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40106291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20053146 + 20053147.

It is an arithmetic number, because the mean of its divisors is an integer number (20053147).

Almost surely, 2^40106293 is an apocalyptic number.

It is an amenable number.

40106293 is a deficient number, since it is larger than the sum of its proper divisors (1).

40106293 is an equidigital number, since it uses as much as digits as its factorization.

40106293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 40106293 is about 6332.9529447170. The cubic root of 40106293 is about 342.2978521911.

Adding to 40106293 its reverse (39260104), we get a palindrome (79366397).

The spelling of 40106293 in words is "forty million, one hundred six thousand, two hundred ninety-three".