42205834 has 16 divisors (see below), whose sum is σ = 69258240. Its totient is φ = 19130560.

The previous prime is 42205799. The next prime is 42205841. The reversal of 42205834 is 43850224.

It is an unprimeable number.

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, 5922 + ... + 10930.

It is an arithmetic number, because the mean of its divisors is an integer number (4328640).

Almost surely, 2^42205834 is an apocalyptic number.

42205834 is a deficient number, since it is larger than the sum of its proper divisors (27052406).

42205834 is a wasteful number, since it uses less digits than its factorization.

42205834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5405.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 42205834 is about 6496.6017270570. The cubic root of 42205834 is about 348.1695841892.

The spelling of 42205834 in words is "forty-two million, two hundred five thousand, eight hundred thirty-four".