7272420 has 48 divisors (see below), whose sum is σ = 20707008. Its totient is φ = 1906560.

The previous prime is 7272409. The next prime is 7272427. The reversal of 7272420 is 242727.

It is not an unprimeable number, because it can be changed into a prime (7272427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2667 + ... + 4653.

It is an arithmetic number, because the mean of its divisors is an integer number (431396).

Almost surely, 2^7272420 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 7272420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10353504).

7272420 is an abundant number, since it is smaller than the sum of its proper divisors (13434588).

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

7272420 is a wasteful number, since it uses less digits than its factorization.

7272420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060 (or 2058 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 7272420 is about 2696.7424793628. The cubic root of 7272420 is about 193.7431326043.

The spelling of 7272420 in words is "seven million, two hundred seventy-two thousand, four hundred twenty".