7215472 has 30 divisors (see below), whose sum is σ = 15370544. Its totient is φ = 3278880.

The previous prime is 7215457. The next prime is 7215479. The reversal of 7215472 is 2745127.

It is a self number, because there is not a number n which added to its sum of digits gives 7215472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7215479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73 + ... + 3799.

Almost surely, 2^7215472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7215472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7685272).

7215472 is an abundant number, since it is smaller than the sum of its proper divisors (8155072).

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

7215472 is a wasteful number, since it uses less digits than its factorization.

7215472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3757 (or 3740 counting only the distinct ones).

The product of its digits is 3920, while the sum is 28.

The square root of 7215472 is about 2686.1630628091. The cubic root of 7215472 is about 193.2360932586.

The spelling of 7215472 in words is "seven million, two hundred fifteen thousand, four hundred seventy-two".