5421720 has 32 divisors (see below), whose sum is σ = 16265520. Its totient is φ = 1445760.

The previous prime is 5421719. The next prime is 5421733. The reversal of 5421720 is 271245.

It is a congruent number.

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, 22471 + ... + 22710.

Almost surely, 2^5421720 is an apocalyptic number.

It is an amenable number.

5421720 is an abundant number, since it is smaller than the sum of its proper divisors (10843800).

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

5421720 is a wasteful number, since it uses less digits than its factorization.

5421720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45195 (or 45191 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 5421720 is about 2328.4587176929. The cubic root of 5421720 is about 175.6759706077.

Adding to 5421720 its reverse (271245), we get a palindrome (5692965).

The spelling of 5421720 in words is "five million, four hundred twenty-one thousand, seven hundred twenty".