726034505 has 16 divisors (see below), whose sum is σ = 1012030464. Its totient is φ = 489689280.

The previous prime is 726034501. The next prime is 726034571. The reversal of 726034505 is 505430627.

It is not a de Polignac number, because 726034505 - 2² = 726034501 is a prime.

It is a super-2 number, since 2×726034505² = 1054252204901190050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (726034501) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 167897 + ... + 172166.

It is an arithmetic number, because the mean of its divisors is an integer number (63251904).

Almost surely, 2^726034505 is an apocalyptic number.

It is an amenable number.

726034505 is a deficient number, since it is larger than the sum of its proper divisors (285995959).

726034505 is a wasteful number, since it uses less digits than its factorization.

726034505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340136.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 726034505 is about 26945.0274633373. The cubic root of 726034505 is about 898.7779731609. Note that the first 3 decimals are identical.

The spelling of 726034505 in words is "seven hundred twenty-six million, thirty-four thousand, five hundred five".