1242424443 has 16 divisors (see below), whose sum is σ = 1832212256. Its totient is φ = 743904000.

The previous prime is 1242424439. The next prime is 1242424489. The reversal of 1242424443 is 3444242421.

1242424443 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1242424443 - 2² = 1242424439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1242424443.

It is not an unprimeable number, because it can be changed into a prime (1242424423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429058 + ... + 431943.

It is an arithmetic number, because the mean of its divisors is an integer number (114513266).

Almost surely, 2^1242424443 is an apocalyptic number.

1242424443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1242424443 is a deficient number, since it is larger than the sum of its proper divisors (589787813).

1242424443 is a wasteful number, since it uses less digits than its factorization.

1242424443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861054.

The product of its digits is 24576, while the sum is 30.

The square root of 1242424443 is about 35248.0416902840. The cubic root of 1242424443 is about 1075.0367949908.

Adding to 1242424443 its reverse (3444242421), we get a palindrome (4686666864).

The spelling of 1242424443 in words is "one billion, two hundred forty-two million, four hundred twenty-four thousand, four hundred forty-three".