726545544 has 32 divisors (see below), whose sum is σ = 1858607520. Its totient is φ = 236549376.

The previous prime is 726545513. The next prime is 726545549. The reversal of 726545544 is 445545627.

It is a junction number, because it is equal to n+sod(n) for n = 726545496 and 726545505.

It is not an unprimeable number, because it can be changed into a prime (726545549) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 350977 + ... + 353040.

It is an arithmetic number, because the mean of its divisors is an integer number (58081485).

Almost surely, 2^726545544 is an apocalyptic number.

It is an amenable number.

726545544 is an abundant number, since it is smaller than the sum of its proper divisors (1132061976).

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

726545544 is a wasteful number, since it uses less digits than its factorization.

726545544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704069 (or 704065 counting only the distinct ones).

The product of its digits is 672000, while the sum is 42.

The square root of 726545544 is about 26954.5087879561. The cubic root of 726545544 is about 898.9888000888.

The spelling of 726545544 in words is "seven hundred twenty-six million, five hundred forty-five thousand, five hundred forty-four".