42869835 has 24 divisors (see below), whose sum is σ = 78680160. Its totient is φ = 21518592.

The previous prime is 42869821. The next prime is 42869837. The reversal of 42869835 is 53896824.

It is not a de Polignac number, because 42869835 - 2⁸ = 42869579 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (42869837) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 27255 + ... + 28784.

It is an arithmetic number, because the mean of its divisors is an integer number (3278340).

Almost surely, 2^42869835 is an apocalyptic number.

42869835 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42869835 is a deficient number, since it is larger than the sum of its proper divisors (35810325).

42869835 is a wasteful number, since it uses less digits than its factorization.

42869835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56067 (or 56064 counting only the distinct ones).

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

The square root of 42869835 is about 6547.5060137429. The cubic root of 42869835 is about 349.9859450138.

The spelling of 42869835 in words is "forty-two million, eight hundred sixty-nine thousand, eight hundred thirty-five".