6722432 has 32 divisors (see below), whose sum is σ = 13861800. Its totient is φ = 3243520.

The previous prime is 6722423. The next prime is 6722473. The reversal of 6722432 is 2342276.

It is a tau number, because it is divible by the number of its divisors (32).

It is a d-powerful number, because it can be written as 6⁴ + 7⁷ + 2⁸ + 2¹⁶ + 4⁴ + 3¹⁴ + 2²⁰ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2807 + ... + 4617.

Almost surely, 2^6722432 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 6722432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6930900).

6722432 is an abundant number, since it is smaller than the sum of its proper divisors (7139368).

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

6722432 is a wasteful number, since it uses less digits than its factorization.

6722432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854 (or 1842 counting only the distinct ones).

The product of its digits is 4032, while the sum is 26.

The square root of 6722432 is about 2592.7653191139. The cubic root of 6722432 is about 188.7305212125.

The spelling of 6722432 in words is "six million, seven hundred twenty-two thousand, four hundred thirty-two".