42094209 has 32 divisors (see below), whose sum is σ = 60781824. Its totient is φ = 25850880.

The previous prime is 42094207. The next prime is 42094211. The reversal of 42094209 is 90249024.

It is an interprime number because it is at equal distance from previous prime (42094207) and next prime (42094211).

It is not a de Polignac number, because 42094209 - 2¹ = 42094207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42094207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307189 + ... + 307325.

It is an arithmetic number, because the mean of its divisors is an integer number (1899432).

Almost surely, 2^42094209 is an apocalyptic number.

It is an amenable number.

42094209 is a deficient number, since it is larger than the sum of its proper divisors (18687615).

42094209 is a wasteful number, since it uses less digits than its factorization.

42094209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 42094209 is about 6488.0050092459. The cubic root of 42094209 is about 347.8623696080.

The spelling of 42094209 in words is "forty-two million, ninety-four thousand, two hundred nine".