105287044 has 24 divisors (see below), whose sum is σ = 188756568. Its totient is φ = 51367680.

The previous prime is 105287033. The next prime is 105287059. The reversal of 105287044 is 440782501.

It can be written as a sum of positive squares in 4 ways, for example, as 19909444 + 85377600 = 4462^2 + 9240^2 .

It is a super-2 number, since 2×105287044² = 22170723268515872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105286997 and 105287015.

It is an unprimeable number.

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, 40504 + ... + 43024.

It is an arithmetic number, because the mean of its divisors is an integer number (7864857).

Almost surely, 2^105287044 is an apocalyptic number.

It is an amenable number.

105287044 is a deficient number, since it is larger than the sum of its proper divisors (83469524).

105287044 is a wasteful number, since it uses less digits than its factorization.

105287044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775 (or 2773 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 105287044 is about 10260.9475196007. The cubic root of 105287044 is about 472.1989071170.

The spelling of 105287044 in words is "one hundred five million, two hundred eighty-seven thousand, forty-four".