40306438430719 has 4 divisors (see below), whose sum is σ = 40306945133520. Its totient is φ = 40305931727920.

The previous prime is 40306438430597. The next prime is 40306438430723. The reversal of 40306438430719 is 91703483460304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40306438430719 - 2¹¹ = 40306438428671 is a prime.

It is a super-2 number, since 2×40306438430719² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40306438434719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253232062 + ... + 253391179.

It is an arithmetic number, because the mean of its divisors is an integer number (10076736283380).

Almost surely, 2^{40306438430719} is an apocalyptic number.

40306438430719 is a deficient number, since it is larger than the sum of its proper divisors (506702801).

40306438430719 is an equidigital number, since it uses as much as digits as its factorization.

40306438430719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506702800.

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 40306438430719 in words is "forty trillion, three hundred six billion, four hundred thirty-eight million, four hundred thirty thousand, seven hundred nineteen".