7224730 has 16 divisors (see below), whose sum is σ = 13036104. Its totient is φ = 2882880.

The previous prime is 7224709. The next prime is 7224743. The reversal of 7224730 is 374227.

It can be written as a sum of positive squares in 4 ways, for example, as 7219969 + 4761 = 2687^2 + 69^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7224695 and 7224704.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6064 + ... + 7156.

Almost surely, 2^7224730 is an apocalyptic number.

7224730 is a deficient number, since it is larger than the sum of its proper divisors (5811374).

7224730 is a wasteful number, since it uses less digits than its factorization.

7224730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 7224730 is about 2687.8857862640. The cubic root of 7224730 is about 193.3187034775.

Adding to 7224730 its reverse (374227), we get a palindrome (7598957).

The spelling of 7224730 in words is "seven million, two hundred twenty-four thousand, seven hundred thirty".