726448513 has 8 divisors (see below), whose sum is σ = 857008640. Its totient is φ = 602583840.

The previous prime is 726448511. The next prime is 726448517. The reversal of 726448513 is 315844627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 726448513 - 2¹ = 726448511 is a prime.

It is a super-2 number, since 2×726448513² = 1055454884079822338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (726448511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1673628 + ... + 1674061.

It is an arithmetic number, because the mean of its divisors is an integer number (107126080).

Almost surely, 2^726448513 is an apocalyptic number.

It is an amenable number.

726448513 is a deficient number, since it is larger than the sum of its proper divisors (130560127).

726448513 is a wasteful number, since it uses less digits than its factorization.

726448513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347727.

The product of its digits is 161280, while the sum is 40.

The square root of 726448513 is about 26952.7088249029. The cubic root of 726448513 is about 898.9487779748.

The spelling of 726448513 in words is "seven hundred twenty-six million, four hundred forty-eight thousand, five hundred thirteen".