422636029749 has 16 divisors (see below), whose sum is σ = 629094888640. Its totient is φ = 280422006480.

The previous prime is 422636029721. The next prime is 422636029787. The reversal of 422636029749 is 947920636224.

422636029749 is a `hidden beast` number, since 4 + 2 + 26 + 3 + 602 + 9 + 7 + 4 + 9 = 666.

It is not a de Polignac number, because 422636029749 - 2⁹ = 422636029237 is a prime.

It is a super-2 number, since 2×422636029749² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422636029695 and 422636029704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422636029799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37087162 + ... + 37098555.

It is an arithmetic number, because the mean of its divisors is an integer number (39318430540).

Almost surely, 2^422636029749 is an apocalyptic number.

It is an amenable number.

422636029749 is a deficient number, since it is larger than the sum of its proper divisors (206458858891).

422636029749 is a wasteful number, since it uses less digits than its factorization.

422636029749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74185937 (or 74185931 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 422636029749 in words is "four hundred twenty-two billion, six hundred thirty-six million, twenty-nine thousand, seven hundred forty-nine".