726368444 has 12 divisors (see below), whose sum is σ = 1279677000. Its totient is φ = 360746448.

The previous prime is 726368443. The next prime is 726368449. The reversal of 726368444 is 444863627.

It is a super-2 number, since 2×726368444² = 1055222232877962272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 726368395 and 726368404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726368443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608774 + ... + 609965.

It is an arithmetic number, because the mean of its divisors is an integer number (106639750).

Almost surely, 2^726368444 is an apocalyptic number.

It is an amenable number.

726368444 is a deficient number, since it is larger than the sum of its proper divisors (553308556).

726368444 is a wasteful number, since it uses less digits than its factorization.

726368444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218892 (or 1218890 counting only the distinct ones).

The product of its digits is 774144, while the sum is 44.

The square root of 726368444 is about 26951.2234230656. The cubic root of 726368444 is about 898.9157494472.

The spelling of 726368444 in words is "seven hundred twenty-six million, three hundred sixty-eight thousand, four hundred forty-four".