72126262 has 16 divisors (see below), whose sum is σ = 116655840. Its totient is φ = 33247872.

The previous prime is 72126259. The next prime is 72126287. The reversal of 72126262 is 26262127.

It is a self number, because there is not a number n which added to its sum of digits gives 72126262.

It is a congruent number.

It is an unprimeable number.

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, 32814 + ... + 34942.

It is an arithmetic number, because the mean of its divisors is an integer number (7290990).

Almost surely, 2^72126262 is an apocalyptic number.

72126262 is a deficient number, since it is larger than the sum of its proper divisors (44529578).

72126262 is a wasteful number, since it uses less digits than its factorization.

72126262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3447.

The product of its digits is 4032, while the sum is 28.

The square root of 72126262 is about 8492.7181750015. The cubic root of 72126262 is about 416.2598036571.

Adding to 72126262 its reverse (26262127), we get a palindrome (98388389).

The spelling of 72126262 in words is "seventy-two million, one hundred twenty-six thousand, two hundred sixty-two".