726117272 has 8 divisors (see below), whose sum is σ = 1361469900. Its totient is φ = 363058632.

The previous prime is 726117191. The next prime is 726117323. The reversal of 726117272 is 272711627.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45382322 + ... + 45382337.

Almost surely, 2^726117272 is an apocalyptic number.

It is an amenable number.

726117272 is a deficient number, since it is larger than the sum of its proper divisors (635352628).

726117272 is a wasteful number, since it uses less digits than its factorization.

726117272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90764665 (or 90764661 counting only the distinct ones).

The product of its digits is 16464, while the sum is 35.

The square root of 726117272 is about 26946.5632688104. The cubic root of 726117272 is about 898.8121250409.

Adding to 726117272 its reverse (272711627), we get a palindrome (998828899).

The spelling of 726117272 in words is "seven hundred twenty-six million, one hundred seventeen thousand, two hundred seventy-two".