20032444340 has 24 divisors (see below), whose sum is σ = 42963201792. Its totient is φ = 7842488480.

The previous prime is 20032444319. The next prime is 20032444351. The reversal of 20032444340 is 4344423002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10654616 + ... + 10656495.

It is an arithmetic number, because the mean of its divisors is an integer number (1790133408).

Almost surely, 2^20032444340 is an apocalyptic number.

20032444340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20032444340 is an abundant number, since it is smaller than the sum of its proper divisors (22930757452).

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

20032444340 is a wasteful number, since it uses less digits than its factorization.

20032444340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21311167 (or 21311165 counting only the distinct ones).

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

Adding to 20032444340 its reverse (4344423002), we get a palindrome (24376867342).

The spelling of 20032444340 in words is "twenty billion, thirty-two million, four hundred forty-four thousand, three hundred forty".