202400400422 has 24 divisors (see below), whose sum is σ = 335206296768. Its totient is φ = 91587600720.

The previous prime is 202400400373. The next prime is 202400400439. The reversal of 202400400422 is 224004004202.

It is a junction number, because it is equal to n+sod(n) for n = 202400400394 and 202400400403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1821293 + ... + 1929224.

It is an arithmetic number, because the mean of its divisors is an integer number (13966929032).

Almost surely, 2^202400400422 is an apocalyptic number.

202400400422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

202400400422 is a deficient number, since it is larger than the sum of its proper divisors (132805896346).

202400400422 is a wasteful number, since it uses less digits than its factorization.

202400400422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750764 (or 3750753 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 202400400422 its reverse (224004004202), we get a palindrome (426404404624).

The spelling of 202400400422 in words is "two hundred two billion, four hundred million, four hundred thousand, four hundred twenty-two".