42448887 has 16 divisors (see below), whose sum is σ = 67725280. Its totient is φ = 26122176.

The previous prime is 42448877. The next prime is 42448891. The reversal of 42448887 is 78884424.

It is a happy number.

It is not a de Polignac number, because 42448887 - 2⁴ = 42448871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42448807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60118 + ... + 60819.

It is an arithmetic number, because the mean of its divisors is an integer number (4232830).

Almost surely, 2^42448887 is an apocalyptic number.

42448887 is a deficient number, since it is larger than the sum of its proper divisors (25276393).

42448887 is a wasteful number, since it uses less digits than its factorization.

42448887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120959 (or 120953 counting only the distinct ones).

The product of its digits is 458752, while the sum is 45.

The square root of 42448887 is about 6515.2810376836. The cubic root of 42448887 is about 348.8366462940.

It can be divided in two parts, 4244 and 8887, that added together give a palindrome (13131).

The spelling of 42448887 in words is "forty-two million, four hundred forty-eight thousand, eight hundred eighty-seven".