7231420 has 72 divisors (see below), whose sum is σ = 18156096. Its totient is φ = 2411136.

The previous prime is 7231403. The next prime is 7231429. The reversal of 7231420 is 241327.

7231420 is nontrivially palindromic in base 13.

7231420 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7231429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45982 + ... + 46138.

It is an arithmetic number, because the mean of its divisors is an integer number (252168).

Almost surely, 2^7231420 is an apocalyptic number.

7231420 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7231420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9078048).

7231420 is an abundant number, since it is smaller than the sum of its proper divisors (10924676).

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

7231420 is a wasteful number, since it uses less digits than its factorization.

7231420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 7231420 is about 2689.1299708270. The cubic root of 7231420 is about 193.3783552171.

Adding to 7231420 its reverse (241327), we get a palindrome (7472747).

The spelling of 7231420 in words is "seven million, two hundred thirty-one thousand, four hundred twenty".