42242250 has 64 divisors (see below), whose sum is σ = 106419456. Its totient is φ = 11160000.

The previous prime is 42242173. The next prime is 42242251. The reversal of 42242250 is 5224224.

It is not an unprimeable number, because it can be changed into a prime (42242251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113064 + ... + 113436.

It is an arithmetic number, because the mean of its divisors is an integer number (1662804).

Almost surely, 2^42242250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42242250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53209728).

42242250 is an abundant number, since it is smaller than the sum of its proper divisors (64177206).

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

42242250 is a wasteful number, since it uses less digits than its factorization.

42242250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 42242250 is about 6499.4038188129. The cubic root of 42242250 is about 348.2696911932.

Adding to 42242250 its reverse (5224224), we get a palindrome (47466474).

The spelling of 42242250 in words is "forty-two million, two hundred forty-two thousand, two hundred fifty".