105242028 has 12 divisors (see below), whose sum is σ = 245564760. Its totient is φ = 35080672.

The previous prime is 105241999. The next prime is 105242057. The reversal of 105242028 is 820242501.

It is an interprime number because it is at equal distance from previous prime (105241999) and next prime (105242057).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×105242028² = 22151768915105568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105241989 and 105242007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4385073 + ... + 4385096.

It is an arithmetic number, because the mean of its divisors is an integer number (20463730).

Almost surely, 2^105242028 is an apocalyptic number.

It is an amenable number.

105242028 is an abundant number, since it is smaller than the sum of its proper divisors (140322732).

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

105242028 is a wasteful number, since it uses less digits than its factorization.

105242028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8770176 (or 8770174 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 105242028 is about 10258.7537254776. The cubic root of 105242028 is about 472.1316005255.

Adding to 105242028 its reverse (820242501), we get a palindrome (925484529).

The spelling of 105242028 in words is "one hundred five million, two hundred forty-two thousand, twenty-eight".