7222264 has 16 divisors (see below), whose sum is σ = 15476400. Its totient is φ = 3095232.

The previous prime is 7222219. The next prime is 7222279. The reversal of 7222264 is 4622227.

It is a super-2 number, since 2×7222264² = 104322194571392, which contains 22 as substring.

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, 64429 + ... + 64540.

It is an arithmetic number, because the mean of its divisors is an integer number (967275).

Almost surely, 2^7222264 is an apocalyptic number.

It is an amenable number.

7222264 is an abundant number, since it is smaller than the sum of its proper divisors (8254136).

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

7222264 is a wasteful number, since it uses less digits than its factorization.

7222264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128982 (or 128978 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 7222264 is about 2687.4270222650. The cubic root of 7222264 is about 193.2967059692.

The spelling of 7222264 in words is "seven million, two hundred twenty-two thousand, two hundred sixty-four".