1242430442 has 8 divisors (see below), whose sum is σ = 2033068032. Its totient is φ = 564741100.

The previous prime is 1242430373. The next prime is 1242430457. The reversal of 1242430442 is 2440342421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28237034 + ... + 28237077.

It is an arithmetic number, because the mean of its divisors is an integer number (254133504).

Almost surely, 2^1242430442 is an apocalyptic number.

1242430442 is a deficient number, since it is larger than the sum of its proper divisors (790637590).

1242430442 is a wasteful number, since it uses less digits than its factorization.

1242430442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56474124.

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

The square root of 1242430442 is about 35248.1267871074. The cubic root of 1242430442 is about 1075.0385252463.

Adding to 1242430442 its reverse (2440342421), we get a palindrome (3682772863).

The spelling of 1242430442 in words is "one billion, two hundred forty-two million, four hundred thirty thousand, four hundred forty-two".