7822420 has 24 divisors (see below), whose sum is σ = 16509024. Its totient is φ = 3113376.

The previous prime is 7822417. The next prime is 7822427. The reversal of 7822420 is 242287.

It is a super-2 number, since 2×7822420² = 122380509312800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7822427) 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 7 ways as a sum of consecutive naturals, for example, 3679 + ... + 5401.

It is an arithmetic number, because the mean of its divisors is an integer number (687876).

Almost surely, 2^7822420 is an apocalyptic number.

It is an amenable number.

7822420 is an abundant number, since it is smaller than the sum of its proper divisors (8686604).

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

7822420 is a wasteful number, since it uses less digits than its factorization.

7822420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959 (or 1957 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 7822420 is about 2796.8589524679. The cubic root of 7822420 is about 198.5090800729.

The spelling of 7822420 in words is "seven million, eight hundred twenty-two thousand, four hundred twenty".