1042012442 has 4 divisors (see below), whose sum is σ = 1563018666. Its totient is φ = 521006220.

The previous prime is 1042012403. The next prime is 1042012453. The reversal of 1042012442 is 2442102401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2442102401 = 149 ⋅16389949.

It can be written as a sum of positive squares in only one way, i.e., 819734161 + 222278281 = 28631^2 + 14909^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260503109 + ... + 260503112.

Almost surely, 2^1042012442 is an apocalyptic number.

1042012442 is a deficient number, since it is larger than the sum of its proper divisors (521006224).

1042012442 is an equidigital number, since it uses as much as digits as its factorization.

1042012442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521006223.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1042012442 is about 32280.2175023651. The cubic root of 1042012442 is about 1013.8124842096.

Adding to 1042012442 its reverse (2442102401), we get a palindrome (3484114843).

The spelling of 1042012442 in words is "one billion, forty-two million, twelve thousand, four hundred forty-two".