72243355 has 8 divisors (see below), whose sum is σ = 87880032. Its totient is φ = 57002688.

The previous prime is 72243343. The next prime is 72243389. The reversal of 72243355 is 55334227.

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

It is a cyclic number.

It is not a de Polignac number, because 72243355 - 2⁵ = 72243323 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 98599 + ... + 99328.

It is an arithmetic number, because the mean of its divisors is an integer number (10985004).

Almost surely, 2^72243355 is an apocalyptic number.

72243355 is a deficient number, since it is larger than the sum of its proper divisors (15636677).

72243355 is a wasteful number, since it uses less digits than its factorization.

72243355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198005.

The product of its digits is 25200, while the sum is 31.

The square root of 72243355 is about 8499.6091086591. The cubic root of 72243355 is about 416.4849401304.

The spelling of 72243355 in words is "seventy-two million, two hundred forty-three thousand, three hundred fifty-five".