20202000404 has 6 divisors (see below), whose sum is σ = 35353500714. Its totient is φ = 10101000200.

The previous prime is 20202000391. The next prime is 20202000419. The reversal of 20202000404 is 40400020202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14125797904 + 6076202500 = 118852^2 + 77950^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525250047 + ... + 2525250054.

It is an arithmetic number, because the mean of its divisors is an integer number (5892250119).

Almost surely, 2^20202000404 is an apocalyptic number.

It is an amenable number.

20202000404 is a deficient number, since it is larger than the sum of its proper divisors (15151500310).

20202000404 is a wasteful number, since it uses less digits than its factorization.

20202000404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050500105 (or 5050500103 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 20202000404 its reverse (40400020202), we get a palindrome (60602020606).

The spelling of 20202000404 in words is "twenty billion, two hundred two million, four hundred four", and thus it is an aban number.