2456218 has 4 divisors (see below), whose sum is σ = 3684330. Its totient is φ = 1228108.

The previous prime is 2456197. The next prime is 2456243. The reversal of 2456218 is 8126542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2455489 + 729 = 1567^2 + 27^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614053 + ... + 614056.

2^2456218 is an apocalyptic number.

2456218 is a deficient number, since it is larger than the sum of its proper divisors (1228112).

2456218 is a wasteful number, since it uses less digits than its factorization.

2456218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228111.

The product of its digits is 3840, while the sum is 28.

The square root of 2456218 is about 1567.2325928209. The cubic root of 2456218 is about 134.9239260467.

The spelling of 2456218 in words is "two million, four hundred fifty-six thousand, two hundred eighteen".