20029740014238 has 16 divisors (see below), whose sum is σ = 40911809391360. Its totient is φ = 6534525110936.

The previous prime is 20029740014237. The next prime is 20029740014239. The reversal of 20029740014238 is 83241004792002.

It is an interprime number because it is at equal distance from previous prime (20029740014237) and next prime (20029740014239).

It is a super-3 number, since 3×20029740014238³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20029740014238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20029740014237) 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 in 7 ways as a sum of consecutive naturals, for example, 35513723148 + ... + 35513723711.

It is an arithmetic number, because the mean of its divisors is an integer number (2556988086960).

Almost surely, 2^{20029740014238} is an apocalyptic number.

20029740014238 is an abundant number, since it is smaller than the sum of its proper divisors (20882069377122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20029740014238 is a wasteful number, since it uses less digits than its factorization.

20029740014238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71027446911.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 20029740014238 in words is "twenty trillion, twenty-nine billion, seven hundred forty million, fourteen thousand, two hundred thirty-eight".