403221212340 has 48 divisors (see below), whose sum is σ = 1129748524800. Its totient is φ = 107456215680.

The previous prime is 403221212333. The next prime is 403221212377. The reversal of 403221212340 is 43212122304.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 403221212340.

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 15 ways as a sum of consecutive naturals, for example, 2076316 + ... + 2262195.

It is an arithmetic number, because the mean of its divisors is an integer number (23536427600).

Almost surely, 2^403221212340 is an apocalyptic number.

It is an amenable number.

403221212340 is an abundant number, since it is smaller than the sum of its proper divisors (726527312460).

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

403221212340 is a wasteful number, since it uses less digits than its factorization.

403221212340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340072 (or 4340070 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 403221212340 its reverse (43212122304), we get a palindrome (446433334644).

The spelling of 403221212340 in words is "four hundred three billion, two hundred twenty-one million, two hundred twelve thousand, three hundred forty".