726197844 has 12 divisors (see below), whose sum is σ = 1694461664. Its totient is φ = 242065944.

The previous prime is 726197761. The next prime is 726197867. The reversal of 726197844 is 448791627.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 726197793 and 726197802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30258232 + ... + 30258255.

Almost surely, 2^726197844 is an apocalyptic number.

It is an amenable number.

726197844 is an abundant number, since it is smaller than the sum of its proper divisors (968263820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

726197844 is a wasteful number, since it uses less digits than its factorization.

726197844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60516494 (or 60516492 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 726197844 is about 26948.0582602903. The cubic root of 726197844 is about 898.8453687124.

It can be divided in two parts, 72 and 6197844, that added together give a palindrome (6197916).

The spelling of 726197844 in words is "seven hundred twenty-six million, one hundred ninety-seven thousand, eight hundred forty-four".