1282295778 has 16 divisors (see below), whose sum is σ = 2566391040. Its totient is φ = 427132016.

The previous prime is 1282295723. The next prime is 1282295779. The reversal of 1282295778 is 8775922821.

1282295778 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1282295778.

It is not an unprimeable number, because it can be changed into a prime (1282295779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65625 + ... + 82892.

It is an arithmetic number, because the mean of its divisors is an integer number (160399440).

Almost surely, 2^1282295778 is an apocalyptic number.

1282295778 is an abundant number, since it is smaller than the sum of its proper divisors (1284095262).

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

1282295778 is a wasteful number, since it uses less digits than its factorization.

1282295778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149961.

The product of its digits is 1128960, while the sum is 51.

The square root of 1282295778 is about 35809.1577393270. The cubic root of 1282295778 is about 1086.4157943752.

The spelling of 1282295778 in words is "one billion, two hundred eighty-two million, two hundred ninety-five thousand, seven hundred seventy-eight".