1242418 has 16 divisors (see below), whose sum is σ = 1992960. Its totient is φ = 579600.

The previous prime is 1242413. The next prime is 1242419. The reversal of 1242418 is 8142421.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1242413) 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 7 ways as a sum of consecutive naturals, for example, 1453 + ... + 2143.

It is an arithmetic number, because the mean of its divisors is an integer number (124560).

2^1242418 is an apocalyptic number.

1242418 is a deficient number, since it is larger than the sum of its proper divisors (750542).

1242418 is a wasteful number, since it uses less digits than its factorization.

1242418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753.

The product of its digits is 512, while the sum is 22.

The square root of 1242418 is about 1114.6380578466. The cubic root of 1242418 is about 107.5034936669.

Adding to 1242418 its reverse (8142421), we get a palindrome (9384839).

The spelling of 1242418 in words is "one million, two hundred forty-two thousand, four hundred eighteen".