20434001244 has 24 divisors (see below), whose sum is σ = 48151411728. Its totient is φ = 6743894400.

The previous prime is 20434001243. The next prime is 20434001249. The reversal of 20434001244 is 44210043402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20434001243) 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, 8428657 + ... + 8431080.

It is an arithmetic number, because the mean of its divisors is an integer number (2006308822).

Almost surely, 2^20434001244 is an apocalyptic number.

It is an amenable number.

20434001244 is an abundant number, since it is smaller than the sum of its proper divisors (27717410484).

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

20434001244 is a wasteful number, since it uses less digits than its factorization.

20434001244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16859845 (or 16859843 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20434001244 its reverse (44210043402), we get a palindrome (64644044646).

The spelling of 20434001244 in words is "twenty billion, four hundred thirty-four million, one thousand, two hundred forty-four".