4381478 has 16 divisors (see below), whose sum is σ = 7185024. Its totient is φ = 1994880.

The previous prime is 4381469. The next prime is 4381493. The reversal of 4381478 is 8741834.

It is a happy number.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

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, 1025 + ... + 3132.

It is an arithmetic number, because the mean of its divisors is an integer number (449064).

Almost surely, 2^4381478 is an apocalyptic number.

4381478 is a deficient number, since it is larger than the sum of its proper divisors (2803546).

4381478 is a wasteful number, since it uses less digits than its factorization.

4381478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207.

The product of its digits is 21504, while the sum is 35.

The square root of 4381478 is about 2093.1980317208. The cubic root of 4381478 is about 163.6339993860.

The spelling of 4381478 in words is "four million, three hundred eighty-one thousand, four hundred seventy-eight".