42252447 has 16 divisors (see below), whose sum is σ = 59627520. Its totient is φ = 26539200.

The previous prime is 42252341. The next prime is 42252451. The reversal of 42252447 is 74425224.

42252447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42252447 - 2¹⁰ = 42251423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42252467) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8947 + ... + 12827.

It is an arithmetic number, because the mean of its divisors is an integer number (3726720).

Almost surely, 2^42252447 is an apocalyptic number.

42252447 is a deficient number, since it is larger than the sum of its proper divisors (17375073).

42252447 is a wasteful number, since it uses less digits than its factorization.

42252447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4094.

The product of its digits is 17920, while the sum is 30.

The square root of 42252447 is about 6500.1882280439. The cubic root of 42252447 is about 348.2977122726.

The spelling of 42252447 in words is "forty-two million, two hundred fifty-two thousand, four hundred forty-seven".