20236040272 has 40 divisors (see below), whose sum is σ = 44852008256. Its totient is φ = 8664143616.

The previous prime is 20236040257. The next prime is 20236040273. The reversal of 20236040272 is 27204063202.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 20236040272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20236040273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28243 + ... + 203149.

Almost surely, 2^20236040272 is an apocalyptic number.

It is an amenable number.

20236040272 is an abundant number, since it is smaller than the sum of its proper divisors (24615967984).

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

20236040272 is a wasteful number, since it uses less digits than its factorization.

20236040272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175955 (or 175949 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The spelling of 20236040272 in words is "twenty billion, two hundred thirty-six million, forty thousand, two hundred seventy-two".