7225810 has 8 divisors (see below), whose sum is σ = 13006476. Its totient is φ = 2890320.

The previous prime is 7225807. The next prime is 7225811. The reversal of 7225810 is 185227.

It can be written as a sum of positive squares in 2 ways, for example, as 6548481 + 677329 = 2559^2 + 823^2 .

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

It is a super-2 number, since 2×7225810² = 104424660312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7225811) 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 3 ways as a sum of consecutive naturals, for example, 361281 + ... + 361300.

Almost surely, 2^7225810 is an apocalyptic number.

7225810 is a deficient number, since it is larger than the sum of its proper divisors (5780666).

7225810 is a wasteful number, since it uses less digits than its factorization.

7225810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722588.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 7225810 is about 2688.0866801500. The cubic root of 7225810 is about 193.3283358465.

The spelling of 7225810 in words is "seven million, two hundred twenty-five thousand, eight hundred ten".