322421122452640 has 48 divisors (see below), whose sum is σ = 786291511541760. Its totient is φ = 124808176431360.

The previous prime is 322421122452599. The next prime is 322421122452677. The reversal of 322421122452640 is 46254221124223.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 322421122452593 and 322421122452602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32502124320 + ... + 32502134239.

It is an arithmetic number, because the mean of its divisors is an integer number (16381073157120).

Almost surely, 2^{322421122452640} is an apocalyptic number.

It is an amenable number.

322421122452640 is an abundant number, since it is smaller than the sum of its proper divisors (463870389089120).

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

322421122452640 is a wasteful number, since it uses less digits than its factorization.

322421122452640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65004258605 (or 65004258597 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 40.

Adding to 322421122452640 its reverse (46254221124223), we get a palindrome (368675343576863).

The spelling of 322421122452640 in words is "three hundred twenty-two trillion, four hundred twenty-one billion, one hundred twenty-two million, four hundred fifty-two thousand, six hundred forty".