731422432 has 96 divisors (see below), whose sum is σ = 1639249920. Its totient is φ = 318850560.

The previous prime is 731422429. The next prime is 731422459. The reversal of 731422432 is 234224137.

731422432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 731422432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553869 + ... + 555187.

It is an arithmetic number, because the mean of its divisors is an integer number (17075520).

Almost surely, 2^731422432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 731422432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (819624960).

731422432 is an abundant number, since it is smaller than the sum of its proper divisors (907827488).

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

731422432 is a wasteful number, since it uses less digits than its factorization.

731422432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416 (or 1408 counting only the distinct ones).

The product of its digits is 8064, while the sum is 28.

The square root of 731422432 is about 27044.8226468579. The cubic root of 731422432 is about 900.9957834297.

Adding to 731422432 its reverse (234224137), we get a palindrome (965646569).

The spelling of 731422432 in words is "seven hundred thirty-one million, four hundred twenty-two thousand, four hundred thirty-two".