42974073 has 12 divisors (see below), whose sum is σ = 63092068. Its totient is φ = 28179360.

The previous prime is 42974069. The next prime is 42974083. The reversal of 42974073 is 37047924.

It can be written as a sum of positive squares in 2 ways, for example, as 944784 + 42029289 = 972^2 + 6483^2 .

It is not a de Polignac number, because 42974073 - 2² = 42974069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42974003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38590 + ... + 39687.

Almost surely, 2^42974073 is an apocalyptic number.

It is an amenable number.

42974073 is a deficient number, since it is larger than the sum of its proper divisors (20117995).

42974073 is a wasteful number, since it uses less digits than its factorization.

42974073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78344 (or 78341 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 42974073 is about 6555.4613109986. The cubic root of 42974073 is about 350.2693790126.

The spelling of 42974073 in words is "forty-two million, nine hundred seventy-four thousand, seventy-three".