1282440042 has 48 divisors (see below), whose sum is σ = 2996065800. Its totient is φ = 394108416.

The previous prime is 1282440037. The next prime is 1282440043. The reversal of 1282440042 is 2400442821.

1282440042 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 436851801 + 845588241 = 20901^2 + 29079^2 .

It is a super-2 number, since 2×1282440042² = 3289304922649923528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1282439988 and 1282440015.

It is not an unprimeable number, because it can be changed into a prime (1282440043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 216334 + ... + 222182.

Almost surely, 2^1282440042 is an apocalyptic number.

1282440042 is an abundant number, since it is smaller than the sum of its proper divisors (1713625758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1282440042 is a wasteful number, since it uses less digits than its factorization.

1282440042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6807 (or 6804 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 1282440042 is about 35811.1720277346. The cubic root of 1282440042 is about 1086.4565350565.

Adding to 1282440042 its reverse (2400442821), we get a palindrome (3682882863).

The spelling of 1282440042 in words is "one billion, two hundred eighty-two million, four hundred forty thousand, forty-two".