4431138 has 8 divisors (see below), whose sum is σ = 8862288. Its totient is φ = 1477044.

The previous prime is 4431131. The next prime is 4431143. The reversal of 4431138 is 8311344.

It is a sphenic number, since it is the product of 3 distinct primes.

4431138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (4431131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369256 + ... + 369267.

It is an arithmetic number, because the mean of its divisors is an integer number (1107786).

Almost surely, 2^4431138 is an apocalyptic number.

4431138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4431138 is a wasteful number, since it uses less digits than its factorization.

4431138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738528.

The product of its digits is 1152, while the sum is 24.

The square root of 4431138 is about 2105.0268406840. The cubic root of 4431138 is about 164.2498916943.

The spelling of 4431138 in words is "four million, four hundred thirty-one thousand, one hundred thirty-eight".