42448243 has 4 divisors (see below), whose sum is σ = 43483608. Its totient is φ = 41412880.

The previous prime is 42448187. The next prime is 42448279. The reversal of 42448243 is 34284424.

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 42448243 - 2¹³ = 42440051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42448543) 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, 517621 + ... + 517702.

It is an arithmetic number, because the mean of its divisors is an integer number (10870902).

Almost surely, 2^42448243 is an apocalyptic number.

42448243 is a deficient number, since it is larger than the sum of its proper divisors (1035365).

42448243 is a wasteful number, since it uses less digits than its factorization.

42448243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035364.

The product of its digits is 24576, while the sum is 31.

The square root of 42448243 is about 6515.2316152229. The cubic root of 42448243 is about 348.8348821964.

The spelling of 42448243 in words is "forty-two million, four hundred forty-eight thousand, two hundred forty-three".