20040420202 has 64 divisors (see below), whose sum is σ = 34969190400. Its totient is φ = 8517960000.

The previous prime is 20040420187. The next prime is 20040420203. The reversal of 20040420202 is 20202404002.

It is not an unprimeable number, because it can be changed into a prime (20040420203) 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, 20221927 + ... + 20222917.

It is an arithmetic number, because the mean of its divisors is an integer number (546393600).

Almost surely, 2^20040420202 is an apocalyptic number.

20040420202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20040420202 is a deficient number, since it is larger than the sum of its proper divisors (14928770198).

20040420202 is a wasteful number, since it uses less digits than its factorization.

20040420202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603.

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 20040420202 its reverse (20202404002), we get a palindrome (40242824204).

The spelling of 20040420202 in words is "twenty billion, forty million, four hundred twenty thousand, two hundred two".