42448479 has 4 divisors (see below), whose sum is σ = 56597976. Its totient is φ = 28298984.

The previous prime is 42448457. The next prime is 42448487. The reversal of 42448479 is 97484424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42448479 - 2⁵ = 42448447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42448479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42448429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7074744 + ... + 7074749.

It is an arithmetic number, because the mean of its divisors is an integer number (14149494).

Almost surely, 2^42448479 is an apocalyptic number.

42448479 is a deficient number, since it is larger than the sum of its proper divisors (14149497).

42448479 is a wasteful number, since it uses less digits than its factorization.

42448479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14149496.

The product of its digits is 258048, while the sum is 42.

The square root of 42448479 is about 6515.2497266030. The cubic root of 42448479 is about 348.8355286690.

The spelling of 42448479 in words is "forty-two million, four hundred forty-eight thousand, four hundred seventy-nine".