20802238410 has 32 divisors (see below), whose sum is σ = 50609286720. Its totient is φ = 5471273088.

The previous prime is 20802238333. The next prime is 20802238417. The reversal of 20802238410 is 1483220802.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20802238417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4747180 + ... + 4751559.

It is an arithmetic number, because the mean of its divisors is an integer number (1581540210).

Almost surely, 2^20802238410 is an apocalyptic number.

20802238410 is an abundant number, since it is smaller than the sum of its proper divisors (29807048310).

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

20802238410 is a wasteful number, since it uses less digits than its factorization.

20802238410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9498822.

The product of its (nonzero) digits is 6144, while the sum is 30.

The spelling of 20802238410 in words is "twenty billion, eight hundred two million, two hundred thirty-eight thousand, four hundred ten".