1408218 has 16 divisors (see below), whose sum is σ = 3218880. Its totient is φ = 402336.

The previous prime is 1408217. The next prime is 1408219. The reversal of 1408218 is 8128041.

It is an interprime number because it is at equal distance from previous prime (1408217) and next prime (1408219).

It is not an unprimeable number, because it can be changed into a prime (1408217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16723 + ... + 16806.

It is an arithmetic number, because the mean of its divisors is an integer number (201180).

2^1408218 is an apocalyptic number.

1408218 is an abundant number, since it is smaller than the sum of its proper divisors (1810662).

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

1408218 is a wasteful number, since it uses less digits than its factorization.

1408218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33541.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 1408218 is about 1186.6836141112. The cubic root of 1408218 is about 112.0873574407.

The spelling of 1408218 in words is "one million, four hundred eight thousand, two hundred eighteen".