42123250 has 48 divisors (see below), whose sum is σ = 85472712. Its totient is φ = 15537600.

The previous prime is 42123239. The next prime is 42123259. The reversal of 42123250 is 5232124.

It can be written as a sum of positive squares in 12 ways, for example, as 6446521 + 35676729 = 2539^2 + 5973^2 .

It is not an unprimeable number, because it can be changed into a prime (42123259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41752 + ... + 42748.

Almost surely, 2^42123250 is an apocalyptic number.

42123250 is an abundant number, since it is smaller than the sum of its proper divisors (43349462).

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

42123250 is a wasteful number, since it uses less digits than its factorization.

42123250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 1017 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 42123250 is about 6490.2426765106. The cubic root of 42123250 is about 347.9423485331.

Adding to 42123250 its reverse (5232124), we get a palindrome (47355374).

The spelling of 42123250 in words is "forty-two million, one hundred twenty-three thousand, two hundred fifty".