42297445 has 32 divisors (see below), whose sum is σ = 56337120. Its totient is φ = 30351360.

The previous prime is 42297443. The next prime is 42297473. The reversal of 42297445 is 54479224.

It can be written as a sum of positive squares in 16 ways, for example, as 2076481 + 40220964 = 1441^2 + 6342^2 .

It is not a de Polignac number, because 42297445 - 2¹ = 42297443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42297443) 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 31 ways as a sum of consecutive naturals, for example, 184591 + ... + 184819.

It is an arithmetic number, because the mean of its divisors is an integer number (1760535).

Almost surely, 2^42297445 is an apocalyptic number.

It is an amenable number.

42297445 is a deficient number, since it is larger than the sum of its proper divisors (14039675).

42297445 is a wasteful number, since it uses less digits than its factorization.

42297445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345.

The product of its digits is 80640, while the sum is 37.

The square root of 42297445 is about 6503.6485913678. The cubic root of 42297445 is about 348.4213117416.

The spelling of 42297445 in words is "forty-two million, two hundred ninety-seven thousand, four hundred forty-five".