7240222 has 8 divisors (see below), whose sum is σ = 11847672. Its totient is φ = 3291000.

The previous prime is 7240201. The next prime is 7240241. The reversal of 7240222 is 2220427.

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

It is a self number, because there is not a number n which added to its sum of digits gives 7240222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164529 + ... + 164572.

It is an arithmetic number, because the mean of its divisors is an integer number (1480959).

Almost surely, 2^7240222 is an apocalyptic number.

7240222 is a deficient number, since it is larger than the sum of its proper divisors (4607450).

7240222 is a wasteful number, since it uses less digits than its factorization.

7240222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329114.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 7240222 is about 2690.7660619236. The cubic root of 7240222 is about 193.4567826974.

Adding to 7240222 its reverse (2220427), we get a palindrome (9460649).

The spelling of 7240222 in words is "seven million, two hundred forty thousand, two hundred twenty-two".