321124432 has 20 divisors (see below), whose sum is σ = 622459540. Its totient is φ = 160489728.

The previous prime is 321124429. The next prime is 321124451. The reversal of 321124432 is 234421123.

It can be written as a sum of positive squares in 2 ways, for example, as 316697616 + 4426816 = 17796^2 + 2104^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 59044 + ... + 64252.

It is an arithmetic number, because the mean of its divisors is an integer number (31122977).

Almost surely, 2^321124432 is an apocalyptic number.

It is an amenable number.

321124432 is a deficient number, since it is larger than the sum of its proper divisors (301335108).

321124432 is a wasteful number, since it uses less digits than its factorization.

321124432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9070 (or 9064 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 321124432 is about 17919.9450892016. The cubic root of 321124432 is about 684.7905886593.

Adding to 321124432 its reverse (234421123), we get a palindrome (555545555).

The spelling of 321124432 in words is "three hundred twenty-one million, one hundred twenty-four thousand, four hundred thirty-two".