382894778 has 32 divisors (see below), whose sum is σ = 670101120. Its totient is φ = 160692480.

The previous prime is 382894739. The next prime is 382894781. The reversal of 382894778 is 877498283.

It is a super-2 number, since 2×382894778² = 293216822039338568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257798 + ... + 259278.

It is an arithmetic number, because the mean of its divisors is an integer number (20940660).

Almost surely, 2^382894778 is an apocalyptic number.

382894778 is a deficient number, since it is larger than the sum of its proper divisors (287206342).

382894778 is a wasteful number, since it uses less digits than its factorization.

382894778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862.

The product of its digits is 5419008, while the sum is 56.

The square root of 382894778 is about 19567.6973095968. The cubic root of 382894778 is about 726.1502331347.

The spelling of 382894778 in words is "three hundred eighty-two million, eight hundred ninety-four thousand, seven hundred seventy-eight".