4978378 has 8 divisors (see below), whose sum is σ = 7572960. Its totient is φ = 2454060.

The previous prime is 4978367. The next prime is 4978397. The reversal of 4978378 is 8738794.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 17388 + ... + 17671.

It is an arithmetic number, because the mean of its divisors is an integer number (946620).

Almost surely, 2^4978378 is an apocalyptic number.

4978378 is a deficient number, since it is larger than the sum of its proper divisors (2594582).

4978378 is a wasteful number, since it uses less digits than its factorization.

4978378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35132.

The product of its digits is 338688, while the sum is 46.

The square root of 4978378 is about 2231.2279130559. The cubic root of 4978378 is about 170.7507511755.

It can be divided in two parts, 4978 and 378, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 4978378 in words is "four million, nine hundred seventy-eight thousand, three hundred seventy-eight".