20852433340 has 48 divisors (see below), whose sum is σ = 45235169280. Its totient is φ = 8066111040.

The previous prime is 20852433311. The next prime is 20852433353. The reversal of 20852433340 is 4333425802.

It is a junction number, because it is equal to n+sod(n) for n = 20852433296 and 20852433305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 908121 + ... + 930799.

It is an arithmetic number, because the mean of its divisors is an integer number (942399360).

Almost surely, 2^20852433340 is an apocalyptic number.

20852433340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20852433340 is an abundant number, since it is smaller than the sum of its proper divisors (24382735940).

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

20852433340 is a wasteful number, since it uses less digits than its factorization.

20852433340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24202 (or 24200 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

The spelling of 20852433340 in words is "twenty billion, eight hundred fifty-two million, four hundred thirty-three thousand, three hundred forty".