20434002234 has 16 divisors (see below), whose sum is σ = 41360391072. Its totient is φ = 6729269648.

The previous prime is 20434002233. The next prime is 20434002269. The reversal of 20434002234 is 43220043402.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (20434002233) 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, 20515569 + ... + 20516564.

It is an arithmetic number, because the mean of its divisors is an integer number (2585024442).

Almost surely, 2^20434002234 is an apocalyptic number.

20434002234 is an abundant number, since it is smaller than the sum of its proper divisors (20926388838).

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

20434002234 is a wasteful number, since it uses less digits than its factorization.

20434002234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41032221.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20434002234 its reverse (43220043402), we get a palindrome (63654045636).

The spelling of 20434002234 in words is "twenty billion, four hundred thirty-four million, two thousand, two hundred thirty-four".