6456216 has 32 divisors (see below), whose sum is σ = 17382960. Its totient is φ = 1986432.

The previous prime is 6456199. The next prime is 6456221. The reversal of 6456216 is 6126546.

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, 10035 + ... + 10658.

Almost surely, 2^6456216 is an apocalyptic number.

It is an amenable number.

6456216 is an abundant number, since it is smaller than the sum of its proper divisors (10926744).

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

6456216 is a wasteful number, since it uses less digits than its factorization.

6456216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20715 (or 20711 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 6456216 is about 2540.9084989428. The cubic root of 6456216 is about 186.2055768413.

It can be divided in two parts, 64 and 56216, that added together give a triangular number (56280 = T₃₃₅).

The spelling of 6456216 in words is "six million, four hundred fifty-six thousand, two hundred sixteen".