7422718 has 12 divisors (see below), whose sum is σ = 11447352. Its totient is φ = 3609720.

The previous prime is 7422691. The next prime is 7422719. The reversal of 7422718 is 8172247.

It is a self number, because there is not a number n which added to its sum of digits gives 7422718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7422719) 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 5 ways as a sum of consecutive naturals, for example, 1383 + ... + 4093.

It is an arithmetic number, because the mean of its divisors is an integer number (953946).

Almost surely, 2^7422718 is an apocalyptic number.

7422718 is a deficient number, since it is larger than the sum of its proper divisors (4024634).

7422718 is a wasteful number, since it uses less digits than its factorization.

7422718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787 (or 2750 counting only the distinct ones).

The product of its digits is 6272, while the sum is 31.

The square root of 7422718 is about 2724.4665532908. The cubic root of 7422718 is about 195.0687287867.

The spelling of 7422718 in words is "seven million, four hundred twenty-two thousand, seven hundred eighteen".