202421410434 has 24 divisors (see below), whose sum is σ = 438689168892. Its totient is φ = 67456965600.

The previous prime is 202421410421. The next prime is 202421410439. The reversal of 202421410434 is 434014124202.

202421410434 is a `hidden beast` number, since 2 + 0 + 2 + 4 + 214 + 10 + 434 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 142419438225 + 60001972209 = 377385^2 + 244953^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202421410398 and 202421410407.

It is not an unprimeable number, because it can be changed into a prime (202421410439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1328917 + ... + 1473384.

Almost surely, 2^202421410434 is an apocalyptic number.

202421410434 is an abundant number, since it is smaller than the sum of its proper divisors (236267758458).

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

202421410434 is a wasteful number, since it uses less digits than its factorization.

202421410434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2806322 (or 2806319 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 202421410434 its reverse (434014124202), we get a palindrome (636435534636).

The spelling of 202421410434 in words is "two hundred two billion, four hundred twenty-one million, four hundred ten thousand, four hundred thirty-four".