6421032 has 64 divisors (see below), whose sum is σ = 18105600. Its totient is φ = 2134512.

The previous prime is 6421021. The next prime is 6421039. The reversal of 6421032 is 2301246.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 6420996 and 6421014.

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

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 15 ways as a sum of consecutive naturals, for example, 17313 + ... + 17679.

It is an arithmetic number, because the mean of its divisors is an integer number (282900).

Almost surely, 2^6421032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6421032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9052800).

6421032 is an abundant number, since it is smaller than the sum of its proper divisors (11684568).

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

6421032 is an equidigital number, since it uses as much as digits as its factorization.

6421032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 6421032 is about 2533.9755326364. The cubic root of 6421032 is about 185.8667099164.

Adding to 6421032 its reverse (2301246), we get a palindrome (8722278).

The spelling of 6421032 in words is "six million, four hundred twenty-one thousand, thirty-two".