726057440 has 48 divisors (see below), whose sum is σ = 1736008848. Its totient is φ = 286918656.

The previous prime is 726057419. The next prime is 726057443. The reversal of 726057440 is 44750627.

It is a self number, because there is not a number n which added to its sum of digits gives 726057440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726057443) 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, 14057 + ... + 40616.

It is an arithmetic number, because the mean of its divisors is an integer number (36166851).

Almost surely, 2^726057440 is an apocalyptic number.

It is an amenable number.

726057440 is an abundant number, since it is smaller than the sum of its proper divisors (1009951408).

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

726057440 is a wasteful number, since it uses less digits than its factorization.

726057440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54771 (or 54763 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 726057440 is about 26945.4530487056. The cubic root of 726057440 is about 898.7874370159.

The spelling of 726057440 in words is "seven hundred twenty-six million, fifty-seven thousand, four hundred forty".