726741812 has 6 divisors (see below), whose sum is σ = 1271798178. Its totient is φ = 363370904.

The previous prime is 726741797. The next prime is 726741863. The reversal of 726741812 is 218147627.

It can be written as a sum of positive squares in only one way, i.e., 723932836 + 2808976 = 26906^2 + 1676^2 .

It is a super-2 number, since 2×726741812² = 1056307322618086688, which contains 22 as substring.

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, 90842723 + ... + 90842730.

It is an arithmetic number, because the mean of its divisors is an integer number (211966363).

Almost surely, 2^726741812 is an apocalyptic number.

It is an amenable number.

726741812 is a deficient number, since it is larger than the sum of its proper divisors (545056366).

726741812 is a wasteful number, since it uses less digits than its factorization.

726741812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181685457 (or 181685455 counting only the distinct ones).

The product of its digits is 37632, while the sum is 38.

The square root of 726741812 is about 26958.1492688204. The cubic root of 726741812 is about 899.0697433275.

The spelling of 726741812 in words is "seven hundred twenty-six million, seven hundred forty-one thousand, eight hundred twelve".