726168204 has 18 divisors (see below), whose sum is σ = 1835591940. Its totient is φ = 242056056.

The previous prime is 726168197. The next prime is 726168227. The reversal of 726168204 is 402861627.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 20171339 = 726168204 / (7 + 2 + 6 + 1 + 6 + 8 + 2 + 0 + 4).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 10085634 + ... + 10085705.

It is an arithmetic number, because the mean of its divisors is an integer number (101977330).

Almost surely, 2^726168204 is an apocalyptic number.

It is an amenable number.

726168204 is an abundant number, since it is smaller than the sum of its proper divisors (1109423736).

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

726168204 is a wasteful number, since it uses less digits than its factorization.

726168204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20171349 (or 20171344 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 726168204 is about 26947.5083078195. The cubic root of 726168204 is about 898.8331396578.

The spelling of 726168204 in words is "seven hundred twenty-six million, one hundred sixty-eight thousand, two hundred four".