42617049 has 4 divisors (see below), whose sum is σ = 56822736. Its totient is φ = 28411364.

The previous prime is 42617041. The next prime is 42617059. The reversal of 42617049 is 94071624.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42617049 - 2³ = 42617041 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42617041) 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 3 ways as a sum of consecutive naturals, for example, 7102839 + ... + 7102844.

It is an arithmetic number, because the mean of its divisors is an integer number (14205684).

Almost surely, 2^42617049 is an apocalyptic number.

It is an amenable number.

42617049 is a deficient number, since it is larger than the sum of its proper divisors (14205687).

42617049 is a wasteful number, since it uses less digits than its factorization.

42617049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14205686.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 42617049 is about 6528.1734811508. The cubic root of 42617049 is about 349.2966801528.

The spelling of 42617049 in words is "forty-two million, six hundred seventeen thousand, forty-nine".