42248487 has 16 divisors (see below), whose sum is σ = 58118112. Its totient is φ = 27279360.

The previous prime is 42248483. The next prime is 42248513. The reversal of 42248487 is 78484224.

It is not a de Polignac number, because 42248487 - 2² = 42248483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42248483) 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 15 ways as a sum of consecutive naturals, for example, 27787 + ... + 29267.

It is an arithmetic number, because the mean of its divisors is an integer number (3632382).

Almost surely, 2^42248487 is an apocalyptic number.

42248487 is a deficient number, since it is larger than the sum of its proper divisors (15869625).

42248487 is a wasteful number, since it uses less digits than its factorization.

42248487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778.

The product of its digits is 114688, while the sum is 39.

The square root of 42248487 is about 6499.8836143426. The cubic root of 42248487 is about 348.2868308355.

The spelling of 42248487 in words is "forty-two million, two hundred forty-eight thousand, four hundred eighty-seven".