1242443038 has 16 divisors (see below), whose sum is σ = 1881449856. Its totient is φ = 615311320.

The previous prime is 1242443009. The next prime is 1242443039. The reversal of 1242443038 is 8303442421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242443039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143295 + ... + 151717.

It is an arithmetic number, because the mean of its divisors is an integer number (117590616).

Almost surely, 2^1242443038 is an apocalyptic number.

1242443038 is a deficient number, since it is larger than the sum of its proper divisors (639006818).

1242443038 is a wasteful number, since it uses less digits than its factorization.

1242443038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9119.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 1242443038 is about 35248.3054628162. The cubic root of 1242443038 is about 1075.0421582169.

Adding to 1242443038 its reverse (8303442421), we get a palindrome (9545885459).

The spelling of 1242443038 in words is "one billion, two hundred forty-two million, four hundred forty-three thousand, thirty-eight".