4449138 has 32 divisors (see below), whose sum is σ = 9611136. Its totient is φ = 1367808.

The previous prime is 4449127. The next prime is 4449163. The reversal of 4449138 is 8319444.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4449099 and 4449108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4995 + ... + 5817.

It is an arithmetic number, because the mean of its divisors is an integer number (300348).

Almost surely, 2^4449138 is an apocalyptic number.

4449138 is an abundant number, since it is smaller than the sum of its proper divisors (5161998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4449138 is a wasteful number, since it uses less digits than its factorization.

4449138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898.

The product of its digits is 13824, while the sum is 33.

The square root of 4449138 is about 2109.2979874830. The cubic root of 4449138 is about 164.4719944441.

The spelling of 4449138 in words is "four million, four hundred forty-nine thousand, one hundred thirty-eight".