382778488 has 16 divisors (see below), whose sum is σ = 724679280. Its totient is φ = 189530688.

The previous prime is 382778369. The next prime is 382778491. The reversal of 382778488 is 884877283.

It is a happy number.

It is a super-2 number, since 2×382778488² = 293038741751132288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231445 + ... + 233092.

It is an arithmetic number, because the mean of its divisors is an integer number (45292455).

Almost surely, 2^382778488 is an apocalyptic number.

It is an amenable number.

382778488 is a deficient number, since it is larger than the sum of its proper divisors (341900792).

382778488 is a wasteful number, since it uses less digits than its factorization.

382778488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464646 (or 464642 counting only the distinct ones).

The product of its digits is 4816896, while the sum is 55.

The square root of 382778488 is about 19564.7256050270. The cubic root of 382778488 is about 726.0767120128.

The spelling of 382778488 in words is "three hundred eighty-two million, seven hundred seventy-eight thousand, four hundred eighty-eight".