42517834 has 4 divisors (see below), whose sum is σ = 63776754. Its totient is φ = 21258916.

The previous prime is 42517807. The next prime is 42517843. The reversal of 42517834 is 43871524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23184225 + 19333609 = 4815^2 + 4397^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42517834.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10629457 + ... + 10629460.

Almost surely, 2^42517834 is an apocalyptic number.

42517834 is a deficient number, since it is larger than the sum of its proper divisors (21258920).

42517834 is a wasteful number, since it uses less digits than its factorization.

42517834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21258919.

The product of its digits is 26880, while the sum is 34.

The square root of 42517834 is about 6520.5700671030. The cubic root of 42517834 is about 349.0254084505.

The spelling of 42517834 in words is "forty-two million, five hundred seventeen thousand, eight hundred thirty-four".