42353885 has 24 divisors (see below), whose sum is σ = 62606520. Its totient is φ = 27331584.

The previous prime is 42353881. The next prime is 42353897. The reversal of 42353885 is 58835324.

It can be written as a sum of positive squares in 4 ways, for example, as 18957316 + 23396569 = 4354^2 + 4837^2 .

It is not a de Polignac number, because 42353885 - 2² = 42353881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42353881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 920 + ... + 9249.

It is an arithmetic number, because the mean of its divisors is an integer number (2608605).

Almost surely, 2^42353885 is an apocalyptic number.

It is an amenable number.

42353885 is a deficient number, since it is larger than the sum of its proper divisors (20252635).

42353885 is a wasteful number, since it uses less digits than its factorization.

42353885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10205 (or 10198 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 42353885 is about 6507.9862476806. The cubic root of 42353885 is about 348.5762159652.

The spelling of 42353885 in words is "forty-two million, three hundred fifty-three thousand, eight hundred eighty-five".