402243255420 has 24 divisors (see below), whose sum is σ = 1126281115344. Its totient is φ = 107264868096.

The previous prime is 402243255397. The next prime is 402243255433. The reversal of 402243255420 is 24552342204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3352027069 + ... + 3352027188.

It is an arithmetic number, because the mean of its divisors is an integer number (46928379806).

Almost surely, 2^402243255420 is an apocalyptic number.

It is an amenable number.

402243255420 is an abundant number, since it is smaller than the sum of its proper divisors (724037859924).

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

402243255420 is a wasteful number, since it uses less digits than its factorization.

402243255420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6704054269 (or 6704054267 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 33.

Adding to 402243255420 its reverse (24552342204), we get a palindrome (426795597624).

The spelling of 402243255420 in words is "four hundred two billion, two hundred forty-three million, two hundred fifty-five thousand, four hundred twenty".