7916220 has 144 divisors (see below), whose sum is σ = 27518400. Its totient is φ = 1824768.

The previous prime is 7916213. The next prime is 7916263. The reversal of 7916220 is 226197.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 39681 + ... + 39879.

It is an arithmetic number, because the mean of its divisors is an integer number (191100).

Almost surely, 2^7916220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7916220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13759200).

7916220 is an abundant number, since it is smaller than the sum of its proper divisors (19602180).

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

7916220 is a wasteful number, since it uses less digits than its factorization.

7916220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 7916220 is about 2813.5777934864. The cubic root of 7916220 is about 199.2993818704.

The spelling of 7916220 in words is "seven million, nine hundred sixteen thousand, two hundred twenty".