40268623 has 2 divisors, whose sum is σ = 40268624. Its totient is φ = 40268622.

The previous prime is 40268609. The next prime is 40268629. The reversal of 40268623 is 32686204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40268623 - 2¹⁷ = 40137551 is a prime.

It is a super-2 number, since 2×40268623² = 3243123996632258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40268629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20134311 + 20134312.

It is an arithmetic number, because the mean of its divisors is an integer number (20134312).

Almost surely, 2^40268623 is an apocalyptic number.

40268623 is a deficient number, since it is larger than the sum of its proper divisors (1).

40268623 is an equidigital number, since it uses as much as digits as its factorization.

40268623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 40268623 is about 6345.7562985037. The cubic root of 40268623 is about 342.7590467459.

The spelling of 40268623 in words is "forty million, two hundred sixty-eight thousand, six hundred twenty-three".