20404242040034 has 32 divisors (see below), whose sum is σ = 31758833877120. Its totient is φ = 9823678437888.

The previous prime is 20404242040031. The next prime is 20404242040037. The reversal of 20404242040034 is 43004024240402.

It is an interprime number because it is at equal distance from previous prime (20404242040031) and next prime (20404242040037).

It is a junction number, because it is equal to n+sod(n) for n = 20404242039979 and 20404242040006.

It is not an unprimeable number, because it can be changed into a prime (20404242040031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314270627 + ... + 314335545.

It is an arithmetic number, because the mean of its divisors is an integer number (992463558660).

Almost surely, 2^{20404242040034} is an apocalyptic number.

20404242040034 is a deficient number, since it is larger than the sum of its proper divisors (11354591837086).

20404242040034 is a wasteful number, since it uses less digits than its factorization.

20404242040034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108842.

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 20404242040034 its reverse (43004024240402), we get a palindrome (63408266280436).

The spelling of 20404242040034 in words is "twenty trillion, four hundred four billion, two hundred forty-two million, forty thousand, thirty-four".