7285222 has 24 divisors (see below), whose sum is σ = 12886560. Its totient is φ = 3079440.

The previous prime is 7285219. The next prime is 7285237. The reversal of 7285222 is 2225827.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7272 + ... + 8212.

It is an arithmetic number, because the mean of its divisors is an integer number (536940).

Almost surely, 2^7285222 is an apocalyptic number.

7285222 is a deficient number, since it is larger than the sum of its proper divisors (5601338).

7285222 is a wasteful number, since it uses less digits than its factorization.

7285222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036 (or 1029 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 7285222 is about 2699.1150401567. The cubic root of 7285222 is about 193.8567511617.

The spelling of 7285222 in words is "seven million, two hundred eighty-five thousand, two hundred twenty-two".