322732420 has 24 divisors (see below), whose sum is σ = 717605784. Its totient is φ = 121499136.

The previous prime is 322732411. The next prime is 322732441. The reversal of 322732420 is 24237223.

It can be written as a sum of positive squares in 4 ways, for example, as 27373824 + 295358596 = 5232^2 + 17186^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474267 + ... + 474946.

It is an arithmetic number, because the mean of its divisors is an integer number (29900241).

Almost surely, 2^322732420 is an apocalyptic number.

It is an amenable number.

322732420 is an abundant number, since it is smaller than the sum of its proper divisors (394873364).

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

322732420 is a wasteful number, since it uses less digits than its factorization.

322732420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949239 (or 949237 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 322732420 is about 17964.7549384900. The cubic root of 322732420 is about 685.9316854909.

Adding to 322732420 its reverse (24237223), we get a palindrome (346969643).

The spelling of 322732420 in words is "three hundred twenty-two million, seven hundred thirty-two thousand, four hundred twenty".