42816235 has 16 divisors (see below), whose sum is σ = 64058112. Its totient is φ = 26690400.

The previous prime is 42816233. The next prime is 42816269. The reversal of 42816235 is 53261824.

It is not a de Polignac number, because 42816235 - 2¹ = 42816233 is a prime.

It is a super-3 number, since 3×42816235³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42816197 and 42816206.

It is not an unprimeable number, because it can be changed into a prime (42816233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55221 + ... + 55990.

It is an arithmetic number, because the mean of its divisors is an integer number (4003632).

Almost surely, 2^42816235 is an apocalyptic number.

42816235 is a deficient number, since it is larger than the sum of its proper divisors (21241877).

42816235 is a wasteful number, since it uses less digits than its factorization.

42816235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111234.

The product of its digits is 11520, while the sum is 31.

The square root of 42816235 is about 6543.4115719554. The cubic root of 42816235 is about 349.8400221266.

The spelling of 42816235 in words is "forty-two million, eight hundred sixteen thousand, two hundred thirty-five".