20040042334 has 16 divisors (see below), whose sum is σ = 32381566560. Its totient is φ = 9246624480.

The previous prime is 20040042331. The next prime is 20040042383. The reversal of 20040042334 is 43324004002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20040042331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14514 + ... + 200725.

It is an arithmetic number, because the mean of its divisors is an integer number (2023847910).

Almost surely, 2^20040042334 is an apocalyptic number.

20040042334 is a deficient number, since it is larger than the sum of its proper divisors (12341524226).

20040042334 is a wasteful number, since it uses less digits than its factorization.

20040042334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218835.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20040042334 its reverse (43324004002), we get a palindrome (63364046336).

The spelling of 20040042334 in words is "twenty billion, forty million, forty-two thousand, three hundred thirty-four".