42040193 has 8 divisors (see below), whose sum is σ = 45698688. Its totient is φ = 38442384.

The previous prime is 42040157. The next prime is 42040199. The reversal of 42040193 is 39104024.

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

It is a cyclic number.

It is not a de Polignac number, because 42040193 - 2¹⁴ = 42023809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42040199) 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 7 ways as a sum of consecutive naturals, for example, 13721 + ... + 16502.

It is an arithmetic number, because the mean of its divisors is an integer number (5712336).

Almost surely, 2^42040193 is an apocalyptic number.

It is an amenable number.

42040193 is a deficient number, since it is larger than the sum of its proper divisors (3658495).

42040193 is a wasteful number, since it uses less digits than its factorization.

42040193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30343.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 42040193 is about 6483.8409141496. The cubic root of 42040193 is about 347.7135116280.

The spelling of 42040193 in words is "forty-two million, forty thousand, one hundred ninety-three".