7420220 has 24 divisors (see below), whose sum is σ = 15633744. Its totient is φ = 2958336.

The previous prime is 7420213. The next prime is 7420243. The reversal of 7420220 is 220247.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11219 + ... + 11861.

It is an arithmetic number, because the mean of its divisors is an integer number (651406).

Almost surely, 2^7420220 is an apocalyptic number.

It is an amenable number.

7420220 is an abundant number, since it is smaller than the sum of its proper divisors (8213524).

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

7420220 is a wasteful number, since it uses less digits than its factorization.

7420220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 7420220 is about 2724.0080763463. The cubic root of 7420220 is about 195.0468438852.

Adding to 7420220 its reverse (220247), we get a palindrome (7640467).

The spelling of 7420220 in words is "seven million, four hundred twenty thousand, two hundred twenty".