1182273778 has 8 divisors (see below), whose sum is σ = 2026755072. Its totient is φ = 506688756.

The previous prime is 1182273773. The next prime is 1182273791. The reversal of 1182273778 is 8773722811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1182273778² = 2795542572292786568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1182273773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42224050 + ... + 42224077.

It is an arithmetic number, because the mean of its divisors is an integer number (253344384).

Almost surely, 2^1182273778 is an apocalyptic number.

1182273778 is a deficient number, since it is larger than the sum of its proper divisors (844481294).

1182273778 is an equidigital number, since it uses as much as digits as its factorization.

1182273778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84448136.

The product of its digits is 263424, while the sum is 46.

The square root of 1182273778 is about 34384.2082648416. The cubic root of 1182273778 is about 1057.4001129230.

The spelling of 1182273778 in words is "one billion, one hundred eighty-two million, two hundred seventy-three thousand, seven hundred seventy-eight".