7122318 has 64 divisors (see below), whose sum is σ = 17390592. Its totient is φ = 1900800.

The previous prime is 7122307. The next prime is 7122319. The reversal of 7122318 is 8132217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7122319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70468 + ... + 70568.

It is an arithmetic number, because the mean of its divisors is an integer number (271728).

Almost surely, 2^7122318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7122318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8695296).

7122318 is an abundant number, since it is smaller than the sum of its proper divisors (10268274).

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

7122318 is a wasteful number, since it uses less digits than its factorization.

7122318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209.

The product of its digits is 672, while the sum is 24.

The square root of 7122318 is about 2668.7671310926. The cubic root of 7122318 is about 192.4009092530.

The spelling of 7122318 in words is "seven million, one hundred twenty-two thousand, three hundred eighteen".