726554138 has 16 divisors (see below), whose sum is σ = 1096913664. Its totient is φ = 360924000.

The previous prime is 726554137. The next prime is 726554141. The reversal of 726554138 is 831455627.

726554138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 726554095 and 726554104.

It is not an unprimeable number, because it can be changed into a prime (726554137) 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, 227831 + ... + 230997.

It is an arithmetic number, because the mean of its divisors is an integer number (68557104).

Almost surely, 2^726554138 is an apocalyptic number.

726554138 is a deficient number, since it is larger than the sum of its proper divisors (370359526).

726554138 is a wasteful number, since it uses less digits than its factorization.

726554138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877.

The product of its digits is 201600, while the sum is 41.

The square root of 726554138 is about 26954.6682042276. The cubic root of 726554138 is about 898.9923446609.

The spelling of 726554138 in words is "seven hundred twenty-six million, five hundred fifty-four thousand, one hundred thirty-eight".