42254144 has 28 divisors (see below), whose sum is σ = 85436964. Its totient is φ = 20726784.

The previous prime is 42254143. The next prime is 42254161. The reversal of 42254144 is 44145224.

It can be written as a sum of positive squares in 2 ways, for example, as 32718400 + 9535744 = 5720^2 + 3088^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42254143) 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, 2837 + ... + 9620.

Almost surely, 2^42254144 is an apocalyptic number.

It is an amenable number.

42254144 is an abundant number, since it is smaller than the sum of its proper divisors (43182820).

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

42254144 is a wasteful number, since it uses less digits than its factorization.

42254144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12522 (or 12512 counting only the distinct ones).

The product of its digits is 5120, while the sum is 26.

The square root of 42254144 is about 6500.3187614147. The cubic root of 42254144 is about 348.3023751450.

Adding to 42254144 its reverse (44145224), we get a palindrome (86399368).

The spelling of 42254144 in words is "forty-two million, two hundred fifty-four thousand, one hundred forty-four".