72271726 has 32 divisors (see below), whose sum is σ = 119439360. Its totient is φ = 32649600.

The previous prime is 72271711. The next prime is 72271729. The reversal of 72271726 is 62717227.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 72271691 and 72271700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72271729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201135 + ... + 201493.

It is an arithmetic number, because the mean of its divisors is an integer number (3732480).

Almost surely, 2^72271726 is an apocalyptic number.

72271726 is a deficient number, since it is larger than the sum of its proper divisors (47167634).

72271726 is a wasteful number, since it uses less digits than its factorization.

72271726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600.

The product of its digits is 16464, while the sum is 34.

The square root of 72271726 is about 8501.2779039389. The cubic root of 72271726 is about 416.5394528617.

The spelling of 72271726 in words is "seventy-two million, two hundred seventy-one thousand, seven hundred twenty-six".