1065042442 has 4 divisors (see below), whose sum is σ = 1597563666. Its totient is φ = 532521220.

The previous prime is 1065042431. The next prime is 1065042457. The reversal of 1065042442 is 2442405601.

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., 751362921 + 313679521 = 27411^2 + 17711^2 .

It is a super-2 number, since 2×1065042442² = 2268630806522646728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1065042442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266260609 + ... + 266260612.

Almost surely, 2^1065042442 is an apocalyptic number.

1065042442 is a deficient number, since it is larger than the sum of its proper divisors (532521224).

1065042442 is an equidigital number, since it uses as much as digits as its factorization.

1065042442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532521223.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1065042442 is about 32634.9880036748. The cubic root of 1065042442 is about 1021.2270386210.

The spelling of 1065042442 in words is "one billion, sixty-five million, forty-two thousand, four hundred forty-two".