42050420 has 48 divisors (see below), whose sum is σ = 95256000. Its totient is φ = 15540480.

The previous prime is 42050387. The next prime is 42050423. The reversal of 42050420 is 2405024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42050423) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14231 + ... + 16929.

It is an arithmetic number, because the mean of its divisors is an integer number (1984500).

Almost surely, 2^42050420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42050420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47628000).

42050420 is an abundant number, since it is smaller than the sum of its proper divisors (53205580).

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

42050420 is a wasteful number, since it uses less digits than its factorization.

42050420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768 (or 2766 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 42050420 is about 6484.6295191013. The cubic root of 42050420 is about 347.7417051060.

Adding to 42050420 its reverse (2405024), we get a palindrome (44455444).

The spelling of 42050420 in words is "forty-two million, fifty thousand, four hundred twenty".