421320324 has 24 divisors (see below), whose sum is σ = 986637568. Its totient is φ = 139932000.

The previous prime is 421320313. The next prime is 421320329. The reversal of 421320324 is 423023124.

It is a self number, because there is not a number n which added to its sum of digits gives 421320324.

It is not an unprimeable number, because it can be changed into a prime (421320329) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 60052 + ... + 66699.

Almost surely, 2^421320324 is an apocalyptic number.

It is an amenable number.

421320324 is an abundant number, since it is smaller than the sum of its proper divisors (565317244).

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

421320324 is a wasteful number, since it uses less digits than its factorization.

421320324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127035 (or 127033 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 421320324 is about 20526.0888627132. The cubic root of 421320324 is about 749.6711589503.

Adding to 421320324 its reverse (423023124), we get a palindrome (844343448).

The spelling of 421320324 in words is "four hundred twenty-one million, three hundred twenty thousand, three hundred twenty-four".