42863805 has 24 divisors (see below), whose sum is σ = 74594520. Its totient is φ = 22769280.

The previous prime is 42863767. The next prime is 42863813. The reversal of 42863805 is 50836824.

42863805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13689 + 42850116 = 117^2 + 6546^2 .

It is not a de Polignac number, because 42863805 - 2⁸ = 42863549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42863805.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 10335 + ... + 13875.

It is an arithmetic number, because the mean of its divisors is an integer number (3108105).

Almost surely, 2^42863805 is an apocalyptic number.

42863805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42863805 is a deficient number, since it is larger than the sum of its proper divisors (31730715).

42863805 is a wasteful number, since it uses less digits than its factorization.

42863805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821 (or 3818 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 42863805 is about 6547.0455168725. The cubic root of 42863805 is about 349.9695347632.

The spelling of 42863805 in words is "forty-two million, eight hundred sixty-three thousand, eight hundred five".