5578378 has 16 divisors (see below), whose sum is σ = 9232776. Its totient is φ = 2511360.

The previous prime is 5578369. The next prime is 5578387. The reversal of 5578378 is 8738755.

It is an interprime number because it is at equal distance from previous prime (5578369) and next prime (5578387).

It can be written as a sum of positive squares in 4 ways, for example, as 3932289 + 1646089 = 1983^2 + 1283^2 .

It is a super-2 number, since 2×5578378² = 62236602221768, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1551 + ... + 3682.

Almost surely, 2^5578378 is an apocalyptic number.

5578378 is a deficient number, since it is larger than the sum of its proper divisors (3654398).

5578378 is a wasteful number, since it uses less digits than its factorization.

5578378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289.

The product of its digits is 235200, while the sum is 43.

The square root of 5578378 is about 2361.8590135738. The cubic root of 5578378 is about 177.3519548475.

The spelling of 5578378 in words is "five million, five hundred seventy-eight thousand, three hundred seventy-eight".