1284374066 has 4 divisors (see below), whose sum is σ = 1926561102. Its totient is φ = 642187032.

The previous prime is 1284374023. The next prime is 1284374087. The reversal of 1284374066 is 6604734821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6604734821 = 17 ⋅388513813.

It can be written as a sum of positive squares in only one way, i.e., 698492041 + 585882025 = 26429^2 + 24205^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321093515 + ... + 321093518.

Almost surely, 2^1284374066 is an apocalyptic number.

1284374066 is a deficient number, since it is larger than the sum of its proper divisors (642187036).

1284374066 is an equidigital number, since it uses as much as digits as its factorization.

1284374066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642187035.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 1284374066 is about 35838.1649362799. The cubic root of 1284374066 is about 1087.0024157091.

The spelling of 1284374066 in words is "one billion, two hundred eighty-four million, three hundred seventy-four thousand, sixty-six".