726385155 has 8 divisors (see below), whose sum is σ = 1162216272. Its totient is φ = 387405408.

The previous prime is 726385021. The next prime is 726385157. The reversal of 726385155 is 551583627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 726385155 - 2⁸ = 726384899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (726385157) 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 7 ways as a sum of consecutive naturals, for example, 24212824 + ... + 24212853.

It is an arithmetic number, because the mean of its divisors is an integer number (145277034).

Almost surely, 2^726385155 is an apocalyptic number.

726385155 is a deficient number, since it is larger than the sum of its proper divisors (435831117).

726385155 is a wasteful number, since it uses less digits than its factorization.

726385155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48425685.

The product of its digits is 252000, while the sum is 42.

The square root of 726385155 is about 26951.5334443144. The cubic root of 726385155 is about 898.9226429487.

It can be divided in two parts, 726 and 385155, that added together give a triangular number (385881 = T₈₇₈).

The spelling of 726385155 in words is "seven hundred twenty-six million, three hundred eighty-five thousand, one hundred fifty-five".