7622220 has 24 divisors (see below), whose sum is σ = 21342384. Its totient is φ = 2032576.

The previous prime is 7622213. The next prime is 7622231. The reversal of 7622220 is 222267.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63459 + ... + 63578.

It is an arithmetic number, because the mean of its divisors is an integer number (889266).

Almost surely, 2^7622220 is an apocalyptic number.

It is an amenable number.

7622220 is an abundant number, since it is smaller than the sum of its proper divisors (13720164).

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

7622220 is a wasteful number, since it uses less digits than its factorization.

7622220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127049 (or 127047 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 7622220 is about 2760.8368296587. The cubic root of 7622220 is about 196.8009361116.

Adding to 7622220 its reverse (222267), we get a palindrome (7844487).

The spelling of 7622220 in words is "seven million, six hundred twenty-two thousand, two hundred twenty".