42409293 has 8 divisors (see below), whose sum is σ = 57925056. Its totient is φ = 27583200.

The previous prime is 42409291. The next prime is 42409307. The reversal of 42409293 is 39290424.

42409293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42409293 - 2¹ = 42409291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42409291) 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 7 ways as a sum of consecutive naturals, for example, 172273 + ... + 172518.

It is an arithmetic number, because the mean of its divisors is an integer number (7240632).

Almost surely, 2^42409293 is an apocalyptic number.

It is an amenable number.

42409293 is a deficient number, since it is larger than the sum of its proper divisors (15515763).

42409293 is a wasteful number, since it uses less digits than its factorization.

42409293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344835.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 42409293 is about 6512.2417799096. The cubic root of 42409293 is about 348.7281539739.

The spelling of 42409293 in words is "forty-two million, four hundred nine thousand, two hundred ninety-three".