726036243 has 4 divisors (see below), whose sum is σ = 968048328. Its totient is φ = 484024160.

The previous prime is 726036203. The next prime is 726036251. The reversal of 726036243 is 342630627.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 726036243 - 2⁸ = 726035987 is a prime.

It is a super-2 number, since 2×726036243² = 1054257252299110098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (726036203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121006038 + ... + 121006043.

It is an arithmetic number, because the mean of its divisors is an integer number (242012082).

Almost surely, 2^726036243 is an apocalyptic number.

726036243 is a deficient number, since it is larger than the sum of its proper divisors (242012085).

726036243 is a wasteful number, since it uses less digits than its factorization.

726036243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242012084.

The product of its (nonzero) digits is 36288, while the sum is 33.

The square root of 726036243 is about 26945.0597141665. The cubic root of 726036243 is about 898.7786903329.

The spelling of 726036243 in words is "seven hundred twenty-six million, thirty-six thousand, two hundred forty-three".