726420270 has 64 divisors (see below), whose sum is σ = 1827753984. Its totient is φ = 184419840.

The previous prime is 726420263. The next prime is 726420287. The reversal of 726420270 is 72024627.

726420270 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151510 + ... + 156230.

It is an arithmetic number, because the mean of its divisors is an integer number (28558656).

Almost surely, 2^726420270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 726420270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (913876992).

726420270 is an abundant number, since it is smaller than the sum of its proper divisors (1101333714).

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

726420270 is a wasteful number, since it uses less digits than its factorization.

726420270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4977.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 726420270 is about 26952.1848836045. The cubic root of 726420270 is about 898.9371279914.

Adding to 726420270 its reverse (72024627), we get a palindrome (798444897).

The spelling of 726420270 in words is "seven hundred twenty-six million, four hundred twenty thousand, two hundred seventy".