7224549 has 8 divisors (see below), whose sum is σ = 9645312. Its totient is φ = 4810080.

The previous prime is 7224521. The next prime is 7224551. The reversal of 7224549 is 9454227.

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

It is not a de Polignac number, because 7224549 - 2⁵ = 7224517 is a prime.

7224549 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7224149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3052 + ... + 4874.

It is an arithmetic number, because the mean of its divisors is an integer number (1205664).

Almost surely, 2^7224549 is an apocalyptic number.

It is an amenable number.

7224549 is a deficient number, since it is larger than the sum of its proper divisors (2420763).

7224549 is a wasteful number, since it uses less digits than its factorization.

7224549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147.

The product of its digits is 20160, while the sum is 33.

The square root of 7224549 is about 2687.8521164677. The cubic root of 7224549 is about 193.3170890698.

The spelling of 7224549 in words is "seven million, two hundred twenty-four thousand, five hundred forty-nine".