40304131429 has 2 divisors, whose sum is σ = 40304131430. Its totient is φ = 40304131428.

The previous prime is 40304131423. The next prime is 40304131457. The reversal of 40304131429 is 92413140304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21541432900 + 18762698529 = 146770^2 + 136977^2 .

It is a cyclic number.

It is not a de Polignac number, because 40304131429 - 2³ = 40304131421 is a prime.

It is a super-2 number, since 2×40304131429² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40304131429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40304131421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20152065714 + 20152065715.

It is an arithmetic number, because the mean of its divisors is an integer number (20152065715).

Almost surely, 2^40304131429 is an apocalyptic number.

It is an amenable number.

40304131429 is a deficient number, since it is larger than the sum of its proper divisors (1).

40304131429 is an equidigital number, since it uses as much as digits as its factorization.

40304131429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 40304131429 in words is "forty billion, three hundred four million, one hundred thirty-one thousand, four hundred twenty-nine".