20440523120 has 40 divisors (see below), whose sum is σ = 47530417680. Its totient is φ = 8175142400.

The previous prime is 20440523113. The next prime is 20440523137. The reversal of 20440523120 is 2132504402.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 944420 + ... + 965820.

It is an arithmetic number, because the mean of its divisors is an integer number (1188260442).

Almost surely, 2^20440523120 is an apocalyptic number.

20440523120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20440523120 is an abundant number, since it is smaller than the sum of its proper divisors (27089894560).

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

20440523120 is a wasteful number, since it uses less digits than its factorization.

20440523120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33353 (or 33347 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The spelling of 20440523120 in words is "twenty billion, four hundred forty million, five hundred twenty-three thousand, one hundred twenty".