726002172 has 72 divisors (see below), whose sum is σ = 2101395296. Its totient is φ = 207028224.

The previous prime is 726002171. The next prime is 726002201. The reversal of 726002172 is 271200627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726002171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142908 + ... + 147900.

Almost surely, 2^726002172 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 726002172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050697648).

726002172 is an abundant number, since it is smaller than the sum of its proper divisors (1375393124).

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

726002172 is a wasteful number, since it uses less digits than its factorization.

726002172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5587 (or 5582 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 726002172 is about 26944.4274758251. The cubic root of 726002172 is about 898.7646309945.

Adding to 726002172 its reverse (271200627), we get a palindrome (997202799).

The spelling of 726002172 in words is "seven hundred twenty-six million, two thousand, one hundred seventy-two".