4198378 has 8 divisors (see below), whose sum is σ = 6306372. Its totient is φ = 2096256.

The previous prime is 4198357. The next prime is 4198379. The reversal of 4198378 is 8738914.

It can be written as a sum of positive squares in 2 ways, for example, as 3470769 + 727609 = 1863^2 + 853^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 4198378.

It is not an unprimeable number, because it can be changed into a prime (4198379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1626 + ... + 3322.

Almost surely, 2^4198378 is an apocalyptic number.

4198378 is a deficient number, since it is larger than the sum of its proper divisors (2107994).

4198378 is a wasteful number, since it uses less digits than its factorization.

4198378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936.

The product of its digits is 48384, while the sum is 40.

The square root of 4198378 is about 2048.9943874984. The cubic root of 4198378 is about 161.3220922356.

The spelling of 4198378 in words is "four million, one hundred ninety-eight thousand, three hundred seventy-eight".