42350020 has 12 divisors (see below), whose sum is σ = 88935084. Its totient is φ = 16940000.

The previous prime is 42350017. The next prime is 42350029. The reversal of 42350020 is 2005324.

It can be written as a sum of positive squares in 2 ways, for example, as 31181056 + 11168964 = 5584^2 + 3342^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42349976 and 42350003.

It is not an unprimeable number, because it can be changed into a prime (42350029) 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 3 ways as a sum of consecutive naturals, for example, 1058731 + ... + 1058770.

It is an arithmetic number, because the mean of its divisors is an integer number (7411257).

Almost surely, 2^42350020 is an apocalyptic number.

It is an amenable number.

42350020 is an abundant number, since it is smaller than the sum of its proper divisors (46585064).

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

42350020 is a wasteful number, since it uses less digits than its factorization.

42350020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117510 (or 2117508 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 42350020 is about 6507.6892980535. The cubic root of 42350020 is about 348.5656125455.

Adding to 42350020 its reverse (2005324), we get a palindrome (44355344).

The spelling of 42350020 in words is "forty-two million, three hundred fifty thousand, twenty".