7440223 has 8 divisors (see below), whose sum is σ = 8560640. Its totient is φ = 6334200.

The previous prime is 7440221. The next prime is 7440227. The reversal of 7440223 is 3220447.

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

It is a cyclic number.

It is not a de Polignac number, because 7440223 - 2¹ = 7440221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7440194 and 7440203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7440221) 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, 2463 + ... + 4576.

It is an arithmetic number, because the mean of its divisors is an integer number (1070080).

Almost surely, 2^7440223 is an apocalyptic number.

7440223 is a deficient number, since it is larger than the sum of its proper divisors (1120417).

7440223 is a wasteful number, since it uses less digits than its factorization.

7440223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7197.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 7440223 is about 2727.6772169742. The cubic root of 7440223 is about 195.2219519649.

The spelling of 7440223 in words is "seven million, four hundred forty thousand, two hundred twenty-three".