7180222 has 16 divisors (see below), whose sum is σ = 13033440. Its totient is φ = 2896128.

The previous prime is 7180193. The next prime is 7180223. The reversal of 7180222 is 2220817.

It is a junction number, because it is equal to n+sod(n) for n = 7180193 and 7180202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7180223) 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, 14847 + ... + 15322.

It is an arithmetic number, because the mean of its divisors is an integer number (814590).

Almost surely, 2^7180222 is an apocalyptic number.

7180222 is a deficient number, since it is larger than the sum of its proper divisors (5853218).

7180222 is a wasteful number, since it uses less digits than its factorization.

7180222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30195.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 7180222 is about 2679.5936259067. The cubic root of 7180222 is about 192.9209050647.

It can be divided in two parts, 71802 and 22, that added together give a square (71824 = 268²).

The spelling of 7180222 in words is "seven million, one hundred eighty thousand, two hundred twenty-two".