20440202202 has 64 divisors (see below), whose sum is σ = 52762694400. Its totient is φ = 5744312640.

The previous prime is 20440202149. The next prime is 20440202207. The reversal of 20440202202 is 20220204402.

20440202202 is a `hidden beast` number, since 2 + 0 + 440 + 2 + 0 + 220 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20440202207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 420177 + ... + 466292.

It is an arithmetic number, because the mean of its divisors is an integer number (824417100).

Almost surely, 2^20440202202 is an apocalyptic number.

20440202202 is an abundant number, since it is smaller than the sum of its proper divisors (32322492198).

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

20440202202 is a wasteful number, since it uses less digits than its factorization.

20440202202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886548 (or 886542 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20440202202 its reverse (20220204402), we get a palindrome (40660406604).

The spelling of 20440202202 in words is "twenty billion, four hundred forty million, two hundred two thousand, two hundred two".