5421218 has 16 divisors (see below), whose sum is σ = 9158400. Its totient is φ = 2384400.

The previous prime is 5421209. The next prime is 5421263. The reversal of 5421218 is 8121245.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5421193 and 5421202.

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, 3293 + ... + 4656.

It is an arithmetic number, because the mean of its divisors is an integer number (572400).

Almost surely, 2^5421218 is an apocalyptic number.

5421218 is a deficient number, since it is larger than the sum of its proper divisors (3737182).

5421218 is a wasteful number, since it uses less digits than its factorization.

5421218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7993.

The product of its digits is 640, while the sum is 23.

The square root of 5421218 is about 2328.3509185688. The cubic root of 5421218 is about 175.6705484625.

The spelling of 5421218 in words is "five million, four hundred twenty-one thousand, two hundred eighteen".