20440454202 has 48 divisors (see below), whose sum is σ = 51369918912. Its totient is φ = 5752961280.

The previous prime is 20440454189. The next prime is 20440454249. The reversal of 20440454202 is 20245404402.

20440454202 is a `hidden beast` number, since 2 + 0 + 4 + 4 + 0 + 454 + 202 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1202199 + ... + 1219082.

It is an arithmetic number, because the mean of its divisors is an integer number (1070206644).

Almost surely, 2^20440454202 is an apocalyptic number.

20440454202 is an abundant number, since it is smaller than the sum of its proper divisors (30929464710).

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

20440454202 is a wasteful number, since it uses less digits than its factorization.

20440454202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421363 (or 2421360 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

Adding to 20440454202 its reverse (20245404402), we get a palindrome (40685858604).

The spelling of 20440454202 in words is "twenty billion, four hundred forty million, four hundred fifty-four thousand, two hundred two".