726270 has 32 divisors (see below), whose sum is σ = 1786752. Its totient is φ = 188832.

The previous prime is 726221. The next prime is 726287. The reversal of 726270 is 72627.

It is a super-2 number, since 2×726270² = 1054936225800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 726270.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 726270.

It is an unprimeable number.

726270 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 15 ways as a sum of consecutive naturals, for example, 1009 + ... + 1571.

It is an arithmetic number, because the mean of its divisors is an integer number (55836).

2⁷²⁶²⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 726270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (893376).

726270 is an abundant number, since it is smaller than the sum of its proper divisors (1060482).

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

726270 is a wasteful number, since it uses less digits than its factorization.

726270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 726270 is about 852.2147616652. The cubic root of 726270 is about 89.8875137890.

Adding to 726270 its reverse (72627), we get a palindrome (798897).

The spelling of 726270 in words is "seven hundred twenty-six thousand, two hundred seventy".