42016530 has 32 divisors (see below), whose sum is σ = 101585664. Its totient is φ = 11121536.

The previous prime is 42016529. The next prime is 42016567. The reversal of 42016530 is 3561024.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42016497 and 42016506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1002 + ... + 9221.

It is an arithmetic number, because the mean of its divisors is an integer number (3174552).

Almost surely, 2^42016530 is an apocalyptic number.

42016530 is an abundant number, since it is smaller than the sum of its proper divisors (59569134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42016530 is a wasteful number, since it uses less digits than its factorization.

42016530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10370.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 42016530 is about 6482.0158901379. The cubic root of 42016530 is about 347.6482606665.

Adding to 42016530 its reverse (3561024), we get a palindrome (45577554).

It can be divided in two parts, 4201 and 6530, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 42016530 in words is "forty-two million, sixteen thousand, five hundred thirty".