42484445 has 12 divisors (see below), whose sum is σ = 54158484. Its totient is φ = 31987200.

The previous prime is 42484441. The next prime is 42484447. The reversal of 42484445 is 54448424.

It can be written as a sum of positive squares in 6 ways, for example, as 121 + 42484324 = 11^2 + 6518^2 .

It is not a de Polignac number, because 42484445 - 2² = 42484441 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 (42484441) 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 11 ways as a sum of consecutive naturals, for example, 13256 + ... + 16145.

It is an arithmetic number, because the mean of its divisors is an integer number (4513207).

Almost surely, 2^42484445 is an apocalyptic number.

It is an amenable number.

42484445 is a deficient number, since it is larger than the sum of its proper divisors (11674039).

42484445 is a wasteful number, since it uses less digits than its factorization.

42484445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29440 (or 29423 counting only the distinct ones).

The product of its digits is 81920, while the sum is 35.

The square root of 42484445 is about 6518.0092819817. The cubic root of 42484445 is about 348.9340220047.

The spelling of 42484445 in words is "forty-two million, four hundred eighty-four thousand, four hundred forty-five".