20802214730 has 48 divisors (see below), whose sum is σ = 43578508680. Its totient is φ = 7119467520.

The previous prime is 20802214723. The next prime is 20802214751. The reversal of 20802214730 is 3741220802.

It can be written as a sum of positive squares in 4 ways, for example, as 20641356241 + 160858489 = 143671^2 + 12683^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20802214693 and 20802214702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 485075 + ... + 526214.

Almost surely, 2^20802214730 is an apocalyptic number.

20802214730 is an abundant number, since it is smaller than the sum of its proper divisors (22776293950).

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

20802214730 is a wasteful number, since it uses less digits than its factorization.

20802214730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011335 (or 1011324 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

It can be divided in two parts, 20802 and 214730, that added together give a palindrome (235532).

The spelling of 20802214730 in words is "twenty billion, eight hundred two million, two hundred fourteen thousand, seven hundred thirty".