726740130 has 64 divisors (see below), whose sum is σ = 1811248128. Its totient is φ = 186420480.

The previous prime is 726740093. The next prime is 726740143. The reversal of 726740130 is 31047627.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158632 + ... + 163148.

It is an arithmetic number, because the mean of its divisors is an integer number (28300752).

Almost surely, 2^726740130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 726740130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (905624064).

726740130 is an abundant number, since it is smaller than the sum of its proper divisors (1084507998).

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

726740130 is a wasteful number, since it uses less digits than its factorization.

726740130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4731.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 726740130 is about 26958.1180722987. The cubic root of 726740130 is about 899.0690497128.

Adding to 726740130 its reverse (31047627), we get a palindrome (757787757).

The spelling of 726740130 in words is "seven hundred twenty-six million, seven hundred forty thousand, one hundred thirty".