105439308 has 48 divisors (see below), whose sum is σ = 273509376. Its totient is φ = 31394880.

The previous prime is 105439289. The next prime is 105439309. The reversal of 105439308 is 803934501.

It is a super-2 number, since 2×105439308² = 22234895343037728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105439309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6066 + ... + 15737.

It is an arithmetic number, because the mean of its divisors is an integer number (5698112).

Almost surely, 2^105439308 is an apocalyptic number.

It is an amenable number.

105439308 is an abundant number, since it is smaller than the sum of its proper divisors (168070068).

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

105439308 is a wasteful number, since it uses less digits than its factorization.

105439308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21854 (or 21852 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 105439308 is about 10268.3644267235. The cubic root of 105439308 is about 472.4264256539.

The spelling of 105439308 in words is "one hundred five million, four hundred thirty-nine thousand, three hundred eight".