7204420 has 24 divisors (see below), whose sum is σ = 15926400. Its totient is φ = 2729952.

The previous prime is 7204403. The next prime is 7204423. The reversal of 7204420 is 244027.

7204420 is nontrivially palindromic in base 9.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (7204423) 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, 9100 + ... + 9859.

It is an arithmetic number, because the mean of its divisors is an integer number (663600).

Almost surely, 2^7204420 is an apocalyptic number.

It is an amenable number.

7204420 is an abundant number, since it is smaller than the sum of its proper divisors (8721980).

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

7204420 is a wasteful number, since it uses less digits than its factorization.

7204420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18987 (or 18985 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 7204420 is about 2684.1050650077. The cubic root of 7204420 is about 193.1373823853.

Adding to 7204420 its reverse (244027), we get a palindrome (7448447).

The spelling of 7204420 in words is "seven million, two hundred four thousand, four hundred twenty".