42417785 has 8 divisors (see below), whose sum is σ = 53580480. Its totient is φ = 32148144.

The previous prime is 42417763. The next prime is 42417787. The reversal of 42417785 is 58771424.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42417785 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42417787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223157 + ... + 223346.

It is an arithmetic number, because the mean of its divisors is an integer number (6697560).

Almost surely, 2^42417785 is an apocalyptic number.

It is an amenable number.

42417785 is a deficient number, since it is larger than the sum of its proper divisors (11162695).

42417785 is a wasteful number, since it uses less digits than its factorization.

42417785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446527.

The product of its digits is 62720, while the sum is 38.

The square root of 42417785 is about 6512.8937500930. The cubic root of 42417785 is about 348.7514287613.

The spelling of 42417785 in words is "forty-two million, four hundred seventeen thousand, seven hundred eighty-five".