7272828 has 30 divisors (see below), whose sum is σ = 19013456. Its totient is φ = 2424168.

The previous prime is 7272809. The next prime is 7272829. The reversal of 7272828 is 8282727.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7272792 and 7272801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7272829) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10900 + ... + 11547.

Almost surely, 2^7272828 is an apocalyptic number.

It is an amenable number.

7272828 is an abundant number, since it is smaller than the sum of its proper divisors (11740628).

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

7272828 is a wasteful number, since it uses less digits than its factorization.

7272828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22463 (or 22452 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 7272828 is about 2696.8181251245. The cubic root of 7272828 is about 193.7467556862.

It can be divided in two parts, 7272 and 828, that added together give a square (8100 = 90²).

The spelling of 7272828 in words is "seven million, two hundred seventy-two thousand, eight hundred twenty-eight".