322421004 has 18 divisors (see below), whose sum is σ = 815008740. Its totient is φ = 107473656.

The previous prime is 322420991. The next prime is 322421069. The reversal of 322421004 is 400124223.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4478034 + ... + 4478105.

Almost surely, 2^322421004 is an apocalyptic number.

It is an amenable number.

322421004 is an abundant number, since it is smaller than the sum of its proper divisors (492587736).

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

322421004 is a wasteful number, since it uses less digits than its factorization.

322421004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8956149 (or 8956144 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 322421004 is about 17956.0854308505. The cubic root of 322421004 is about 685.7109878562.

Adding to 322421004 its reverse (400124223), we get a palindrome (722545227).

The spelling of 322421004 in words is "three hundred twenty-two million, four hundred twenty-one thousand, four".