20182928292 has 72 divisors (see below), whose sum is σ = 54154383192. Its totient is φ = 6316032000.

The previous prime is 20182928281. The next prime is 20182928299. The reversal of 20182928292 is 29282928102.

20182928292 is a `hidden beast` number, since 201 + 82 + 9 + 282 + 92 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11197025856 + 8985902436 = 105816^2 + 94794^2 .

It is not an unprimeable number, because it can be changed into a prime (20182928299) by changing a digit.

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, 204292 + ... + 286532.

It is an arithmetic number, because the mean of its divisors is an integer number (752144211).

Almost surely, 2^20182928292 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20182928292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27077191596).

20182928292 is an abundant number, since it is smaller than the sum of its proper divisors (33971454900).

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

20182928292 is a wasteful number, since it uses less digits than its factorization.

20182928292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82669 (or 82664 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 20182928292 in words is "twenty billion, one hundred eighty-two million, nine hundred twenty-eight thousand, two hundred ninety-two".