42816499 has 16 divisors (see below), whose sum is σ = 48960000. Its totient is φ = 37084320.

The previous prime is 42816497. The next prime is 42816509. The reversal of 42816499 is 99461824.

It is a cyclic number.

It is not a de Polignac number, because 42816499 - 2¹ = 42816497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42816497) 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, 24352 + ... + 26050.

It is an arithmetic number, because the mean of its divisors is an integer number (3060000).

Almost surely, 2^42816499 is an apocalyptic number.

42816499 is a deficient number, since it is larger than the sum of its proper divisors (6143501).

42816499 is a wasteful number, since it uses less digits than its factorization.

42816499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818.

The product of its digits is 124416, while the sum is 43.

The square root of 42816499 is about 6543.4317448874. The cubic root of 42816499 is about 349.8407411496.

The spelling of 42816499 in words is "forty-two million, eight hundred sixteen thousand, four hundred ninety-nine".