20592039240 has 128 divisors (see below), whose sum is σ = 68928192000. Its totient is φ = 5468166144.

The previous prime is 20592039229. The next prime is 20592039287. The reversal of 20592039240 is 4293029502.

20592039240 is a `hidden beast` number, since 20 + 592 + 0 + 3 + 9 + 2 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20592039195 and 20592039204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218232 + ... + 298008.

It is an arithmetic number, because the mean of its divisors is an integer number (538501500).

Almost surely, 2^20592039240 is an apocalyptic number.

20592039240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20592039240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34464096000).

20592039240 is an abundant number, since it is smaller than the sum of its proper divisors (48336152760).

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

20592039240 is a wasteful number, since it uses less digits than its factorization.

20592039240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80036 (or 80026 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 20592039240 in words is "twenty billion, five hundred ninety-two million, thirty-nine thousand, two hundred forty".