202404434013 has 10 divisors (see below), whose sum is σ = 302357241054. Its totient is φ = 134936289288.

The previous prime is 202404433991. The next prime is 202404434051. The reversal of 202404434013 is 310434404202.

It is a happy number.

202404434013 is a `hidden beast` number, since 202 + 4 + 0 + 443 + 4 + 0 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 162004640004 + 40399794009 = 402498^2 + 200997^2 .

It is not a de Polignac number, because 202404434013 - 2²² = 202400239709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202404434053) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1249410006 + ... + 1249410167.

Almost surely, 2^202404434013 is an apocalyptic number.

It is an amenable number.

202404434013 is a deficient number, since it is larger than the sum of its proper divisors (99952807041).

202404434013 is an equidigital number, since it uses as much as digits as its factorization.

202404434013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498820185 (or 2498820176 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 202404434013 its reverse (310434404202), we get a palindrome (512838838215).

The spelling of 202404434013 in words is "two hundred two billion, four hundred four million, four hundred thirty-four thousand, thirteen".