4538378 has 16 divisors (see below), whose sum is σ = 7717920. Its totient is φ = 1984176.

The previous prime is 4538333. The next prime is 4538407. The reversal of 4538378 is 8738354.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4100 + ... + 5087.

It is an arithmetic number, because the mean of its divisors is an integer number (482370).

Almost surely, 2^4538378 is an apocalyptic number.

4538378 is a deficient number, since it is larger than the sum of its proper divisors (3179542).

4538378 is a wasteful number, since it uses less digits than its factorization.

4538378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9221.

The product of its digits is 80640, while the sum is 38.

The square root of 4538378 is about 2130.3469201048. The cubic root of 4538378 is about 165.5643728736.

It can be divided in two parts, 4 and 538378, that multiplied together give a palindrome (2153512).

The spelling of 4538378 in words is "four million, five hundred thirty-eight thousand, three hundred seventy-eight".