1242244430 has 32 divisors (see below), whose sum is σ = 2558697984. Its totient is φ = 425375136.

The previous prime is 1242244429. The next prime is 1242244441. The reversal of 1242244430 is 344422421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1242244430.

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 15 ways as a sum of consecutive naturals, for example, 46829 + ... + 68391.

It is an arithmetic number, because the mean of its divisors is an integer number (79959312).

Almost surely, 2^1242244430 is an apocalyptic number.

1242244430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242244430 is an abundant number, since it is smaller than the sum of its proper divisors (1316453554).

1242244430 is a wasteful number, since it uses less digits than its factorization.

1242244430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22400.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 1242244430 is about 35245.4880800366. The cubic root of 1242244430 is about 1074.9848723308.

Adding to 1242244430 its reverse (344422421), we get a palindrome (1586666851).

The spelling of 1242244430 in words is "one billion, two hundred forty-two million, two hundred forty-four thousand, four hundred thirty".