1015042442 has 4 divisors (see below), whose sum is σ = 1522563666. Its totient is φ = 507521220.

The previous prime is 1015042421. The next prime is 1015042447. The reversal of 1015042442 is 2442405101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1013085241 + 1957201 = 31829^2 + 1399^2 .

It is a super-2 number, since 2×1015042442² = 2060622318122646728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1015042447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253760609 + ... + 253760612.

Almost surely, 2^1015042442 is an apocalyptic number.

1015042442 is a deficient number, since it is larger than the sum of its proper divisors (507521224).

1015042442 is an equidigital number, since it uses as much as digits as its factorization.

1015042442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507521223.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1015042442 is about 31859.7307270479. The cubic root of 1015042442 is about 1004.9892136826.

Adding to 1015042442 its reverse (2442405101), we get a palindrome (3457447543).

The spelling of 1015042442 in words is "one billion, fifteen million, forty-two thousand, four hundred forty-two".