1382327778 has 16 divisors (see below), whose sum is σ = 2977321536. Its totient is φ = 425331600.

The previous prime is 1382327759. The next prime is 1382327801. The reversal of 1382327778 is 8777232831.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8860998 + ... + 8861153.

It is an arithmetic number, because the mean of its divisors is an integer number (186082596).

Almost surely, 2^1382327778 is an apocalyptic number.

1382327778 is an abundant number, since it is smaller than the sum of its proper divisors (1594993758).

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

1382327778 is a wasteful number, since it uses less digits than its factorization.

1382327778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17722169.

The product of its digits is 790272, while the sum is 48.

The square root of 1382327778 is about 37179.6688796444. The cubic root of 1382327778 is about 1113.9619201442.

The spelling of 1382327778 in words is "one billion, three hundred eighty-two million, three hundred twenty-seven thousand, seven hundred seventy-eight".