7281226 has 8 divisors (see below), whose sum is σ = 10934784. Its totient is φ = 3636300.

The previous prime is 7281223. The next prime is 7281229. The reversal of 7281226 is 6221827.

It is an interprime number because it is at equal distance from previous prime (7281223) and next prime (7281229).

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

It is a junction number, because it is equal to n+sod(n) for n = 7281194 and 7281203.

It is not an unprimeable number, because it can be changed into a prime (7281223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721 + ... + 3883.

It is an arithmetic number, because the mean of its divisors is an integer number (1366848).

Almost surely, 2^7281226 is an apocalyptic number.

7281226 is a deficient number, since it is larger than the sum of its proper divisors (3653558).

7281226 is a wasteful number, since it uses less digits than its factorization.

7281226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4316.

The product of its digits is 2688, while the sum is 28.

The square root of 7281226 is about 2698.3746959976. The cubic root of 7281226 is about 193.8213007090.

The spelling of 7281226 in words is "seven million, two hundred eighty-one thousand, two hundred twenty-six".