1042012456 has 24 divisors (see below), whose sum is σ = 2023481070. Its totient is φ = 503037248.

The previous prime is 1042012453. The next prime is 1042012471. The reversal of 1042012456 is 6542102401.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 979064100 + 62948356 = 31290^2 + 7934^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1042012456.

It is not an unprimeable number, because it can be changed into a prime (1042012453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70711 + ... + 84166.

Almost surely, 2^1042012456 is an apocalyptic number.

It is an amenable number.

1042012456 is a deficient number, since it is larger than the sum of its proper divisors (981468614).

1042012456 is a wasteful number, since it uses less digits than its factorization.

1042012456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154941 (or 154908 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1042012456 is about 32280.2177192162. The cubic root of 1042012456 is about 1013.8124887500.

Adding to 1042012456 its reverse (6542102401), we get a palindrome (7584114857).

The spelling of 1042012456 in words is "one billion, forty-two million, twelve thousand, four hundred fifty-six".