1339218 has 24 divisors (see below), whose sum is σ = 2965248. Its totient is φ = 436632.

The previous prime is 1339211. The next prime is 1339223. The reversal of 1339218 is 8129331.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1339191 and 1339200.

It is not an unprimeable number, because it can be changed into a prime (1339211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55 + ... + 1637.

It is an arithmetic number, because the mean of its divisors is an integer number (123552).

2^1339218 is an apocalyptic number.

1339218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1339218 is an abundant number, since it is smaller than the sum of its proper divisors (1626030).

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

1339218 is a wasteful number, since it uses less digits than its factorization.

1339218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638 (or 1635 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1339218 is about 1157.2458684307. The cubic root of 1339218 is about 110.2259268402.

The spelling of 1339218 in words is "one million, three hundred thirty-nine thousand, two hundred eighteen".