6421030 has 64 divisors (see below), whose sum is σ = 14929920. Its totient is φ = 1929600.

The previous prime is 6421021. The next prime is 6421039. The reversal of 6421030 is 301246.

It is an interprime number because it is at equal distance from previous prime (6421021) and next prime (6421039).

It is a junction number, because it is equal to n+sod(n) for n = 6420995 and 6421013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6421039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23736 + ... + 24004.

It is an arithmetic number, because the mean of its divisors is an integer number (233280).

Almost surely, 2^6421030 is an apocalyptic number.

6421030 is an abundant number, since it is smaller than the sum of its proper divisors (8508890).

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

6421030 is a wasteful number, since it uses less digits than its factorization.

6421030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 6421030 is about 2533.9751379996. The cubic root of 6421030 is about 185.8666906187.

Adding to 6421030 its reverse (301246), we get a palindrome (6722276).

The spelling of 6421030 in words is "six million, four hundred twenty-one thousand, thirty".