720072326 has 8 divisors (see below), whose sum is σ = 1080327024. Its totient is φ = 359963320.

The previous prime is 720072323. The next prime is 720072359. The reversal of 720072326 is 623270027.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720072323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23090 + ... + 44421.

It is an arithmetic number, because the mean of its divisors is an integer number (135040878).

Almost surely, 2^720072326 is an apocalyptic number.

720072326 is a deficient number, since it is larger than the sum of its proper divisors (360254698).

720072326 is a wasteful number, since it uses less digits than its factorization.

720072326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72846.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 720072326 is about 26834.1634115916. The cubic root of 720072326 is about 896.3109596103.

The spelling of 720072326 in words is "seven hundred twenty million, seventy-two thousand, three hundred twenty-six".