1334466778 has 4 divisors (see below), whose sum is σ = 2001700170. Its totient is φ = 667233388.

The previous prime is 1334466761. The next prime is 1334466803. The reversal of 1334466778 is 8776644331.

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., 1166427409 + 168039369 = 34153^2 + 12963^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333616693 + ... + 333616696.

Almost surely, 2^1334466778 is an apocalyptic number.

1334466778 is a deficient number, since it is larger than the sum of its proper divisors (667233392).

1334466778 is an equidigital number, since it uses as much as digits as its factorization.

1334466778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667233391.

The product of its digits is 2032128, while the sum is 49.

The square root of 1334466778 is about 36530.3542003085. The cubic root of 1334466778 is about 1100.9542072846.

The spelling of 1334466778 in words is "one billion, three hundred thirty-four million, four hundred sixty-six thousand, seven hundred seventy-eight".