42250212 has 18 divisors (see below), whose sum is σ = 106799238. Its totient is φ = 14083392.

The previous prime is 42250171. The next prime is 42250223. The reversal of 42250212 is 21205224.

42250212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 25160256 + 17089956 = 5016^2 + 4134^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 586773 + ... + 586844.

It is an arithmetic number, because the mean of its divisors is an integer number (5933291).

Almost surely, 2^42250212 is an apocalyptic number.

It is an amenable number.

42250212 is an abundant number, since it is smaller than the sum of its proper divisors (64549026).

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

42250212 is a wasteful number, since it uses less digits than its factorization.

42250212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173627 (or 1173622 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 42250212 is about 6500.0163076719. The cubic root of 42250212 is about 348.2915709390.

Adding to 42250212 its reverse (21205224), we get a palindrome (63455436).

The spelling of 42250212 in words is "forty-two million, two hundred fifty thousand, two hundred twelve".