42126042 has 16 divisors (see below), whose sum is σ = 96288192. Its totient is φ = 12036000.

The previous prime is 42126031. The next prime is 42126107. The reversal of 42126042 is 24062124.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501459 + ... + 501542.

It is an arithmetic number, because the mean of its divisors is an integer number (6018012).

Almost surely, 2^42126042 is an apocalyptic number.

42126042 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

42126042 is an abundant number, since it is smaller than the sum of its proper divisors (54162150).

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

42126042 is a wasteful number, since it uses less digits than its factorization.

42126042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003013.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 42126042 is about 6490.4577650579. The cubic root of 42126042 is about 347.9500357650.

42126042 divided by its sum of digits (21) gives a palindrome (2006002).

Adding to 42126042 its reverse (24062124), we get a palindrome (66188166).

The spelling of 42126042 in words is "forty-two million, one hundred twenty-six thousand, forty-two".