105287438 has 8 divisors (see below), whose sum is σ = 158733432. Its totient is φ = 52376296.

The previous prime is 105287431. The next prime is 105287449. The reversal of 105287438 is 834782501.

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

It is a super-2 number, since 2×105287438² = 22170889201207688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105287431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133220 + ... + 134007.

It is an arithmetic number, because the mean of its divisors is an integer number (19841679).

Almost surely, 2^105287438 is an apocalyptic number.

105287438 is a deficient number, since it is larger than the sum of its proper divisors (53445994).

105287438 is a wasteful number, since it uses less digits than its factorization.

105287438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267426.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 105287438 is about 10260.9667185894. The cubic root of 105287438 is about 472.1994961294.

The spelling of 105287438 in words is "one hundred five million, two hundred eighty-seven thousand, four hundred thirty-eight".