7272318 has 8 divisors (see below), whose sum is σ = 14544648. Its totient is φ = 2424104.

The previous prime is 7272283. The next prime is 7272319. The reversal of 7272318 is 8132727.

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

7272318 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7272319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606021 + ... + 606032.

It is an arithmetic number, because the mean of its divisors is an integer number (1818081).

Almost surely, 2^7272318 is an apocalyptic number.

7272318 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7272318 is a wasteful number, since it uses less digits than its factorization.

7272318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212058.

The product of its digits is 4704, while the sum is 30.

The square root of 7272318 is about 2696.7235675909. The cubic root of 7272318 is about 193.7422268127.

It can be divided in two parts, 72 and 72318, that added together give a triangular number (72390 = T₃₈₀).

The spelling of 7272318 in words is "seven million, two hundred seventy-two thousand, three hundred eighteen".