4138838 has 16 divisors (see below), whose sum is σ = 6816960. Its totient is φ = 1869000.

The previous prime is 4138829. The next prime is 4138843. The reversal of 4138838 is 8388314.

It is a junction number, because it is equal to n+sod(n) for n = 4138798 and 4138807.

It is a congruent number.

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, 3413 + ... + 4463.

It is an arithmetic number, because the mean of its divisors is an integer number (426060).

Almost surely, 2^4138838 is an apocalyptic number.

4138838 is a deficient number, since it is larger than the sum of its proper divisors (2678122).

4138838 is a wasteful number, since it uses less digits than its factorization.

4138838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243.

The product of its digits is 18432, while the sum is 35.

The square root of 4138838 is about 2034.4134289765. The cubic root of 4138838 is about 160.5558531426. Note that the first 3 decimals are identical.

The spelling of 4138838 in words is "four million, one hundred thirty-eight thousand, eight hundred thirty-eight".