42340417 has 8 divisors (see below), whose sum is σ = 50936000. Its totient is φ = 34381584.

The previous prime is 42340411. The next prime is 42340427. The reversal of 42340417 is 71404324.

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 42340417 - 2³ = 42340409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42340391 and 42340400.

It is not an unprimeable number, because it can be changed into a prime (42340411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159042 + ... + 159307.

It is an arithmetic number, because the mean of its divisors is an integer number (6367000).

Almost surely, 2^42340417 is an apocalyptic number.

It is an amenable number.

42340417 is a deficient number, since it is larger than the sum of its proper divisors (8595583).

42340417 is a wasteful number, since it uses less digits than its factorization.

42340417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318375.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 42340417 is about 6506.9514367329. The cubic root of 42340417 is about 348.5392644382.

The spelling of 42340417 in words is "forty-two million, three hundred forty thousand, four hundred seventeen".