6440214 has 16 divisors (see below), whose sum is σ = 14051520. Its totient is φ = 1951560.

The previous prime is 6440201. The next prime is 6440249. The reversal of 6440214 is 4120446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48724 + ... + 48855.

It is an arithmetic number, because the mean of its divisors is an integer number (878220).

Almost surely, 2^6440214 is an apocalyptic number.

6440214 is an abundant number, since it is smaller than the sum of its proper divisors (7611306).

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

6440214 is a wasteful number, since it uses less digits than its factorization.

6440214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97595.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 6440214 is about 2537.7576716464. The cubic root of 6440214 is about 186.0516101435.

The spelling of 6440214 in words is "six million, four hundred forty thousand, two hundred fourteen".