42401240429 has 2 divisors, whose sum is σ = 42401240430. Its totient is φ = 42401240428.

The previous prime is 42401240377. The next prime is 42401240461. The reversal of 42401240429 is 92404210424.

It is an a-pointer prime, because the next prime (42401240461) can be obtained adding 42401240429 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22568151529 + 19833088900 = 150227^2 + 140830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42401240429 is a prime.

It is a super-3 number, since 3×42401240429³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42401240395 and 42401240404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42401240129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21200620214 + 21200620215.

It is an arithmetic number, because the mean of its divisors is an integer number (21200620215).

Almost surely, 2^42401240429 is an apocalyptic number.

It is an amenable number.

42401240429 is a deficient number, since it is larger than the sum of its proper divisors (1).

42401240429 is an equidigital number, since it uses as much as digits as its factorization.

42401240429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 32.

The spelling of 42401240429 in words is "forty-two billion, four hundred one million, two hundred forty thousand, four hundred twenty-nine".