382530778 has 16 divisors (see below), whose sum is σ = 661898304. Its totient is φ = 162408960.

The previous prime is 382530769. The next prime is 382530803. The reversal of 382530778 is 877035283.

It is a super-2 number, since 2×382530778² = 292659592234570568, which contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 126183 + ... + 129178.

It is an arithmetic number, because the mean of its divisors is an integer number (41368644).

Almost surely, 2^382530778 is an apocalyptic number.

382530778 is a deficient number, since it is larger than the sum of its proper divisors (279367526).

382530778 is a wasteful number, since it uses less digits than its factorization.

382530778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255477.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 382530778 is about 19558.3940547275. The cubic root of 382530778 is about 725.9200545907.

The spelling of 382530778 in words is "three hundred eighty-two million, five hundred thirty thousand, seven hundred seventy-eight".