6406212 has 48 divisors (see below), whose sum is σ = 16353792. Its totient is φ = 1943040.

The previous prime is 6406199. The next prime is 6406219. The reversal of 6406212 is 2126046.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6406219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5818 + ... + 6830.

It is an arithmetic number, because the mean of its divisors is an integer number (340704).

Almost surely, 2^6406212 is an apocalyptic number.

6406212 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6406212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8176896).

6406212 is an abundant number, since it is smaller than the sum of its proper divisors (9947580).

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

6406212 is a wasteful number, since it uses less digits than its factorization.

6406212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 6406212 is about 2531.0495846585. The cubic root of 6406212 is about 185.7236038154.

The spelling of 6406212 in words is "six million, four hundred six thousand, two hundred twelve".