7222284 has 30 divisors (see below), whose sum is σ = 18881324. Its totient is φ = 2407320.

The previous prime is 7222279. The next prime is 7222291. The reversal of 7222284 is 4822227.

7222284 = T₁₁₂ + T₁₁₃ + ... + T₃₅₄.

It is a super-2 number, since 2×7222284² = 104322772353312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10822 + ... + 11469.

Almost surely, 2^7222284 is an apocalyptic number.

It is an amenable number.

7222284 is an abundant number, since it is smaller than the sum of its proper divisors (11659040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7222284 is a wasteful number, since it uses less digits than its factorization.

7222284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22307 (or 22296 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 7222284 is about 2687.4307432937. The cubic root of 7222284 is about 193.2968843958.

The spelling of 7222284 in words is "seven million, two hundred twenty-two thousand, two hundred eighty-four".