20206444392 has 48 divisors (see below), whose sum is σ = 57944954340. Its totient is φ = 6339276288.

The previous prime is 20206444369. The next prime is 20206444393. The reversal of 20206444392 is 29344460202.

20206444392 is a `hidden beast` number, since 2 + 0 + 2 + 0 + 644 + 4 + 3 + 9 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15801998436 + 4404445956 = 125706^2 + 66366^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20206444393) 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 11 ways as a sum of consecutive naturals, for example, 8253043 + ... + 8255490.

Almost surely, 2^20206444392 is an apocalyptic number.

It is an amenable number.

20206444392 is an abundant number, since it is smaller than the sum of its proper divisors (37738509948).

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

20206444392 is a wasteful number, since it uses less digits than its factorization.

20206444392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16508562 (or 16508555 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 20206444392 in words is "twenty billion, two hundred six million, four hundred forty-four thousand, three hundred ninety-two".