40430297629 has 2 divisors, whose sum is σ = 40430297630. Its totient is φ = 40430297628.

The previous prime is 40430297599. The next prime is 40430297647. The reversal of 40430297629 is 92679203404.

40430297629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30764458404 + 9665839225 = 175398^2 + 98315^2 .

It is a cyclic number.

It is not a de Polignac number, because 40430297629 - 2²⁹ = 39893426717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40430297329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215148814 + 20215148815.

It is an arithmetic number, because the mean of its divisors is an integer number (20215148815).

Almost surely, 2^40430297629 is an apocalyptic number.

It is an amenable number.

40430297629 is a deficient number, since it is larger than the sum of its proper divisors (1).

40430297629 is an equidigital number, since it uses as much as digits as its factorization.

40430297629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 40430297629 in words is "forty billion, four hundred thirty million, two hundred ninety-seven thousand, six hundred twenty-nine".