42094917 has 16 divisors (see below), whose sum is σ = 62556480. Its totient is φ = 27976176.

The previous prime is 42094909. The next prime is 42094933. The reversal of 42094917 is 71949024.

It is not a de Polignac number, because 42094917 - 2³ = 42094909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42094957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7123 + ... + 11615.

It is an arithmetic number, because the mean of its divisors is an integer number (3909780).

Almost surely, 2^42094917 is an apocalyptic number.

It is an amenable number.

42094917 is a deficient number, since it is larger than the sum of its proper divisors (20461563).

42094917 is a wasteful number, since it uses less digits than its factorization.

42094917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4849 (or 4843 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 42094917 is about 6488.0595712432. The cubic root of 42094917 is about 347.8643198777.

The spelling of 42094917 in words is "forty-two million, ninety-four thousand, nine hundred seventeen".