42445254 has 16 divisors (see below), whose sum is σ = 85670640. Its totient is φ = 14018400.

The previous prime is 42445223. The next prime is 42445279. The reversal of 42445254 is 45254424.

42445254 = 68² + 69² + ... + 503².

42445254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 31797 + ... + 33104.

It is an arithmetic number, because the mean of its divisors is an integer number (5354415).

Almost surely, 2^42445254 is an apocalyptic number.

42445254 is an abundant number, since it is smaller than the sum of its proper divisors (43225386).

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

42445254 is a wasteful number, since it uses less digits than its factorization.

42445254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65015.

The product of its digits is 25600, while the sum is 30.

The square root of 42445254 is about 6515.0022256328. The cubic root of 42445254 is about 348.8266942490.

Adding to 42445254 its reverse (45254424), we get a palindrome (87699678).

The spelling of 42445254 in words is "forty-two million, four hundred forty-five thousand, two hundred fifty-four".