20420232344 has 16 divisors (see below), whose sum is σ = 38289622920. Its totient is φ = 10209666240.

The previous prime is 20420232341. The next prime is 20420232389. The reversal of 20420232344 is 44323202402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20420232341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211772 + ... + 292724.

Almost surely, 2^20420232344 is an apocalyptic number.

It is an amenable number.

20420232344 is a deficient number, since it is larger than the sum of its proper divisors (17869390576).

20420232344 is a wasteful number, since it uses less digits than its factorization.

20420232344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112490 (or 112486 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 20420232344 its reverse (44323202402), we get a palindrome (64743434746).

The spelling of 20420232344 in words is "twenty billion, four hundred twenty million, two hundred thirty-two thousand, three hundred forty-four".