1242404424 has 96 divisors (see below), whose sum is σ = 3434296320. Its totient is φ = 405675648.

The previous prime is 1242404417. The next prime is 1242404431. The reversal of 1242404424 is 4244042421.

It is an interprime number because it is at equal distance from previous prime (1242404417) and next prime (1242404431).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 758134 + ... + 759770.

It is an arithmetic number, because the mean of its divisors is an integer number (35773920).

Almost surely, 2^1242404424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242404424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1717148160).

1242404424 is an abundant number, since it is smaller than the sum of its proper divisors (2191891896).

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

1242404424 is a wasteful number, since it uses less digits than its factorization.

1242404424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859 (or 1852 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

The square root of 1242404424 is about 35247.7577159172. The cubic root of 1242404424 is about 1075.0310209905.

Adding to 1242404424 its reverse (4244042421), we get a palindrome (5486446845).

The spelling of 1242404424 in words is "one billion, two hundred forty-two million, four hundred four thousand, four hundred twenty-four".