4381378 has 8 divisors (see below), whose sum is σ = 6798780. Its totient is φ = 2115120.

The previous prime is 4381367. The next prime is 4381379. The reversal of 4381378 is 8731834.

It can be written as a sum of positive squares in 2 ways, for example, as 4380649 + 729 = 2093^2 + 27^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4381379) 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, 37713 + ... + 37828.

Almost surely, 2^4381378 is an apocalyptic number.

4381378 is a deficient number, since it is larger than the sum of its proper divisors (2417402).

4381378 is a wasteful number, since it uses less digits than its factorization.

4381378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75572.

The product of its digits is 16128, while the sum is 34.

The square root of 4381378 is about 2093.1741446903. The cubic root of 4381378 is about 163.6327544846.

The spelling of 4381378 in words is "four million, three hundred eighty-one thousand, three hundred seventy-eight".