105243040 has 48 divisors (see below), whose sum is σ = 284159232. Its totient is φ = 36082944.

The previous prime is 105243029. The next prime is 105243041. The reversal of 105243040 is 40342501.

It is a super-2 number, since 2×105243040² = 22152194936883200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105242999 and 105243017.

It is not an unprimeable number, because it can be changed into a prime (105243041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45864 + ... + 48103.

It is an arithmetic number, because the mean of its divisors is an integer number (5919984).

Almost surely, 2^105243040 is an apocalyptic number.

105243040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105243040 is an abundant number, since it is smaller than the sum of its proper divisors (178916192).

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

105243040 is an equidigital number, since it uses as much as digits as its factorization.

105243040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93989 (or 93981 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 105243040 is about 10258.8030490891. The cubic root of 105243040 is about 472.1331138489.

Adding to 105243040 its reverse (40342501), we get a palindrome (145585541).

The spelling of 105243040 in words is "one hundred five million, two hundred forty-three thousand, forty".