5721210 has 48 divisors (see below), whose sum is σ = 16230240. Its totient is φ = 1386720.

The previous prime is 5721203. The next prime is 5721211. The reversal of 5721210 is 121275.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (5721211) 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 23 ways as a sum of consecutive naturals, for example, 1900 + ... + 3879.

It is an arithmetic number, because the mean of its divisors is an integer number (338130).

Almost surely, 2^5721210 is an apocalyptic number.

5721210 is an abundant number, since it is smaller than the sum of its proper divisors (10509030).

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

5721210 is a wasteful number, since it uses less digits than its factorization.

5721210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5803 (or 5800 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 5721210 is about 2391.9050984519. The cubic root of 5721210 is about 178.8528903783.

Adding to 5721210 its reverse (121275), we get a palindrome (5842485).

The spelling of 5721210 in words is "five million, seven hundred twenty-one thousand, two hundred ten".