42949673 has 16 divisors (see below), whose sum is σ = 48194832. Its totient is φ = 38016000.

The previous prime is 42949657. The next prime is 42949679. The reversal of 42949673 is 37694924.

42949673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 10778089 + 32171584 = 3283^2 + 5672^2 .

It is a cyclic number.

It is not a de Polignac number, because 42949673 - 2⁴ = 42949657 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 (42949679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31853 + ... + 33173.

It is an arithmetic number, because the mean of its divisors is an integer number (3012177).

Almost surely, 2^42949673 is an apocalyptic number.

It is an amenable number.

42949673 is a deficient number, since it is larger than the sum of its proper divisors (5245159).

42949673 is a wasteful number, since it uses less digits than its factorization.

42949673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436.

The product of its digits is 326592, while the sum is 44.

The square root of 42949673 is about 6553.6000030518. The cubic root of 42949673 is about 350.2030739881.

The spelling of 42949673 in words is "forty-two million, nine hundred forty-nine thousand, six hundred seventy-three".