42050220 has 24 divisors (see below), whose sum is σ = 117740784. Its totient is φ = 11213376.

The previous prime is 42050213. The next prime is 42050221. The reversal of 42050220 is 2205024.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 42050220.

It is not an unprimeable number, because it can be changed into a prime (42050221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350359 + ... + 350478.

It is an arithmetic number, because the mean of its divisors is an integer number (4905866).

Almost surely, 2^42050220 is an apocalyptic number.

It is an amenable number.

42050220 is an abundant number, since it is smaller than the sum of its proper divisors (75690564).

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

42050220 is a wasteful number, since it uses less digits than its factorization.

42050220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700849 (or 700847 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 42050220 is about 6484.6140980015. The cubic root of 42050220 is about 347.7411537960.

Adding to 42050220 its reverse (2205024), we get a palindrome (44255244).

The spelling of 42050220 in words is "forty-two million, fifty thousand, two hundred twenty".