1320878074 has 4 divisors (see below), whose sum is σ = 1981317114. Its totient is φ = 660439036.

The previous prime is 1320878057. The next prime is 1320878093. The reversal of 1320878074 is 4708780231.

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., 1278563049 + 42315025 = 35757^2 + 6505^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330219517 + ... + 330219520.

Almost surely, 2^1320878074 is an apocalyptic number.

1320878074 is a deficient number, since it is larger than the sum of its proper divisors (660439040).

1320878074 is an equidigital number, since it uses as much as digits as its factorization.

1320878074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660439039.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 1320878074 is about 36343.8863359438. The cubic root of 1320878074 is about 1097.2044922304.

The spelling of 1320878074 in words is "one billion, three hundred twenty million, eight hundred seventy-eight thousand, seventy-four".