42250144 has 24 divisors (see below), whose sum is σ = 83950020. Its totient is φ = 20929536.

The previous prime is 42250097. The next prime is 42250147. The reversal of 42250144 is 44105224.

42250144 = T₃₃₆ + T₃₃₇ + ... + T₆₆₂.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42250000 + 144 = 6500^2 + 12^2 .

It is not an unprimeable number, because it can be changed into a prime (42250147) 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, 2569 + ... + 9544.

Almost surely, 2^42250144 is an apocalyptic number.

It is an amenable number.

42250144 is a deficient number, since it is larger than the sum of its proper divisors (41699876).

42250144 is a wasteful number, since it uses less digits than its factorization.

42250144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12232 (or 12224 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 42250144 is about 6500.0110769136. The cubic root of 42250144 is about 348.2913840852.

Adding to 42250144 its reverse (44105224), we get a palindrome (86355368).

The spelling of 42250144 in words is "forty-two million, two hundred fifty thousand, one hundred forty-four".