42869853 has 12 divisors (see below), whose sum is σ = 66686620. Its totient is φ = 26381376.

The previous prime is 42869851. The next prime is 42869857. The reversal of 42869853 is 35896824.

It can be written as a sum of positive squares in 2 ways, for example, as 22781529 + 20088324 = 4773^2 + 4482^2 .

It is not a de Polignac number, because 42869853 - 2¹ = 42869851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42869799 and 42869808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42869851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183088 + ... + 183321.

Almost surely, 2^42869853 is an apocalyptic number.

It is an amenable number.

42869853 is a deficient number, since it is larger than the sum of its proper divisors (23816767).

42869853 is a wasteful number, since it uses less digits than its factorization.

42869853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366428 (or 366425 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 42869853 is about 6547.5073883120. The cubic root of 42869853 is about 349.9859939974.

The spelling of 42869853 in words is "forty-two million, eight hundred sixty-nine thousand, eight hundred fifty-three".