7974220 has 12 divisors (see below), whose sum is σ = 16745904. Its totient is φ = 3189680.

The previous prime is 7974209. The next prime is 7974227. The reversal of 7974220 is 224797.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7974227) 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 3 ways as a sum of consecutive naturals, for example, 199336 + ... + 199375.

It is an arithmetic number, because the mean of its divisors is an integer number (1395492).

Almost surely, 2^7974220 is an apocalyptic number.

It is an amenable number.

7974220 is an abundant number, since it is smaller than the sum of its proper divisors (8771684).

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

7974220 is a wasteful number, since it uses less digits than its factorization.

7974220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398720 (or 398718 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 7974220 is about 2823.8661441364. The cubic root of 7974220 is about 199.7849354858.

The spelling of 7974220 in words is "seven million, nine hundred seventy-four thousand, two hundred twenty".