5730021 has 40 divisors (see below), whose sum is σ = 9583200. Its totient is φ = 3382560.

The previous prime is 5730007. The next prime is 5730031. The reversal of 5730021 is 1200375.

It is not a de Polignac number, because 5730021 - 2⁹ = 5729509 is a prime.

5730021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5729976 and 5730003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5730031) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 52515 + ... + 52623.

It is an arithmetic number, because the mean of its divisors is an integer number (239580).

Almost surely, 2^5730021 is an apocalyptic number.

It is an amenable number.

5730021 is a deficient number, since it is larger than the sum of its proper divisors (3853179).

5730021 is a wasteful number, since it uses less digits than its factorization.

5730021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 5730021 is about 2393.7462271511. The cubic root of 5730021 is about 178.9446579432.

Adding to 5730021 its reverse (1200375), we get a palindrome (6930396).

The spelling of 5730021 in words is "five million, seven hundred thirty thousand, twenty-one".