726544284 has 48 divisors (see below), whose sum is σ = 1758102528. Its totient is φ = 233333568.

The previous prime is 726544271. The next prime is 726544289. The reversal of 726544284 is 482445627.

It is a happy number.

It is a super-2 number, since 2×726544284² = 1055733193226145312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726544289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37789 + ... + 53675.

It is an arithmetic number, because the mean of its divisors is an integer number (36627136).

Almost surely, 2^726544284 is an apocalyptic number.

726544284 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

726544284 is an abundant number, since it is smaller than the sum of its proper divisors (1031558244).

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

726544284 is a wasteful number, since it uses less digits than its factorization.

726544284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16034 (or 16032 counting only the distinct ones).

The product of its digits is 430080, while the sum is 42.

The square root of 726544284 is about 26954.4854152328. The cubic root of 726544284 is about 898.9882804028.

The spelling of 726544284 in words is "seven hundred twenty-six million, five hundred forty-four thousand, two hundred eighty-four".