40508719 has 2 divisors, whose sum is σ = 40508720. Its totient is φ = 40508718.

The previous prime is 40508711. The next prime is 40508753. The reversal of 40508719 is 91780504.

It is a happy number.

It is an a-pointer prime, because the next prime (40508753) can be obtained adding 40508719 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40508719 - 2³ = 40508711 is a prime.

It is a super-2 number, since 2×40508719² = 3281912630041922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40508711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20254359 + 20254360.

It is an arithmetic number, because the mean of its divisors is an integer number (20254360).

Almost surely, 2^40508719 is an apocalyptic number.

40508719 is a deficient number, since it is larger than the sum of its proper divisors (1).

40508719 is an equidigital number, since it uses as much as digits as its factorization.

40508719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 40508719 is about 6364.6460231501. The cubic root of 40508719 is about 343.4389148582.

It can be divided in two parts, 4050 and 8719, that added together give a square (12769 = 113²).

The spelling of 40508719 in words is "forty million, five hundred eight thousand, seven hundred nineteen".