1242430 has 16 divisors (see below), whose sum is σ = 2556000. Its totient is φ = 425952.

The previous prime is 1242421. The next prime is 1242457. The reversal of 1242430 is 342421.

It is a congruent number.

It is an unprimeable number.

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, 8805 + ... + 8944.

It is an arithmetic number, because the mean of its divisors is an integer number (159750).

2^1242430 is an apocalyptic number.

1242430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242430 is an abundant number, since it is smaller than the sum of its proper divisors (1313570).

1242430 is a wasteful number, since it uses less digits than its factorization.

1242430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17763.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1242430 is about 1114.6434407469. The cubic root of 1242430 is about 107.5038397763.

Adding to 1242430 its reverse (342421), we get a palindrome (1584851).

Subtracting from 1242430 its reverse (342421), we obtain a palindrome (900009).

The spelling of 1242430 in words is "one million, two hundred forty-two thousand, four hundred thirty".