1065905844 has 48 divisors (see below), whose sum is σ = 2551245312. Its totient is φ = 346181472.

The previous prime is 1065905803. The next prime is 1065905851. The reversal of 1065905844 is 4485095601.

It is a super-2 number, since 2×1065905844² = 2272310536546704672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1065905796 and 1065905805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226257 + ... + 230919.

It is an arithmetic number, because the mean of its divisors is an integer number (53150944).

Almost surely, 2^1065905844 is an apocalyptic number.

It is an amenable number.

1065905844 is an abundant number, since it is smaller than the sum of its proper divisors (1485339468).

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

1065905844 is a wasteful number, since it uses less digits than its factorization.

1065905844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5156 (or 5154 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 1065905844 is about 32648.2134886428. The cubic root of 1065905844 is about 1021.5029247500.

The spelling of 1065905844 in words is "one billion, sixty-five million, nine hundred five thousand, eight hundred forty-four".