42106504 has 16 divisors (see below), whose sum is σ = 86127120. Its totient is φ = 19139280.

The previous prime is 42106499. The next prime is 42106513. The reversal of 42106504 is 40560124.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 239154 + ... + 239329.

It is an arithmetic number, because the mean of its divisors is an integer number (5382945).

Almost surely, 2^42106504 is an apocalyptic number.

42106504 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42106504 is an abundant number, since it is smaller than the sum of its proper divisors (44020616).

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

42106504 is a wasteful number, since it uses less digits than its factorization.

42106504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478500 (or 478496 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 42106504 is about 6488.9524578317. The cubic root of 42106504 is about 347.8962345314.

Adding to 42106504 its reverse (40560124), we get a palindrome (82666628).

The spelling of 42106504 in words is "forty-two million, one hundred six thousand, five hundred four".