726012 has 72 divisors (see below), whose sum is σ = 2178176. Its totient is φ = 199584.

The previous prime is 726007. The next prime is 726013. The reversal of 726012 is 210627.

It is a happy number.

726012 is nontrivially palindromic in base 13.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726013) by changing a digit.

726012 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10803 + ... + 10869.

2⁷²⁶⁰¹² 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 726012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1089088).

726012 is an abundant number, since it is smaller than the sum of its proper divisors (1452164).

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

726012 is a wasteful number, since it uses less digits than its factorization.

726012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 726012 is about 852.0633779244. The cubic root of 726012 is about 89.8768686547.

Adding to 726012 its reverse (210627), we get a palindrome (936639).

It can be divided in two parts, 72 and 6012, that added together give a square (6084 = 78²).

The spelling of 726012 in words is "seven hundred twenty-six thousand, twelve".