202400200402 has 4 divisors (see below), whose sum is σ = 303600300606. Its totient is φ = 101200100200.

The previous prime is 202400200339. The next prime is 202400200403. The reversal of 202400200402 is 204002004202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 200246405121 + 2153795281 = 447489^2 + 46409^2 .

It is a super-2 number, since 2×202400200402² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202400200403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50600050099 + ... + 50600050102.

Almost surely, 2^202400200402 is an apocalyptic number.

202400200402 is a deficient number, since it is larger than the sum of its proper divisors (101200100204).

202400200402 is a wasteful number, since it uses less digits than its factorization.

202400200402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101200100203.

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

Adding to 202400200402 its reverse (204002004202), we get a palindrome (406402204604).

The spelling of 202400200402 in words is "two hundred two billion, four hundred million, two hundred thousand, four hundred two".