4378838 has 4 divisors (see below), whose sum is σ = 6568260. Its totient is φ = 2189418.

The previous prime is 4378837. The next prime is 4378897. The reversal of 4378838 is 8388734.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 4378795 and 4378804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094708 + ... + 1094711.

It is an arithmetic number, because the mean of its divisors is an integer number (1642065).

Almost surely, 2^4378838 is an apocalyptic number.

4378838 is a deficient number, since it is larger than the sum of its proper divisors (2189422).

4378838 is a wasteful number, since it uses less digits than its factorization.

4378838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189421.

The product of its digits is 129024, while the sum is 41.

The square root of 4378838 is about 2092.5673226924. The cubic root of 4378838 is about 163.6011276357.

The spelling of 4378838 in words is "four million, three hundred seventy-eight thousand, eight hundred thirty-eight".