43138308 has 24 divisors (see below), whose sum is σ = 100763712. Its totient is φ = 14364064.

The previous prime is 43138301. The next prime is 43138313. The reversal of 43138308 is 80383134.

It is not an unprimeable number, because it can be changed into a prime (43138301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18166 + ... + 20402.

It is an arithmetic number, because the mean of its divisors is an integer number (4198488).

Almost surely, 2^43138308 is an apocalyptic number.

It is an amenable number.

43138308 is an abundant number, since it is smaller than the sum of its proper divisors (57625404).

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

43138308 is a wasteful number, since it uses less digits than its factorization.

43138308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3851 (or 3849 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 43138308 is about 6567.9759439267. The cubic root of 43138308 is about 350.7150226237.

It can be divided in two parts, 4313 and 8308, that added together give a palindrome (12621).

The spelling of 43138308 in words is "forty-three million, one hundred thirty-eight thousand, three hundred eight".