42834686 has 4 divisors (see below), whose sum is σ = 64252032. Its totient is φ = 21417342.

The previous prime is 42834667. The next prime is 42834689. The reversal of 42834686 is 68643824.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42834689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10708670 + ... + 10708673.

It is an arithmetic number, because the mean of its divisors is an integer number (16063008).

Almost surely, 2^42834686 is an apocalyptic number.

42834686 is a deficient number, since it is larger than the sum of its proper divisors (21417346).

42834686 is a wasteful number, since it uses less digits than its factorization.

42834686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21417345.

The product of its digits is 221184, while the sum is 41.

The square root of 42834686 is about 6544.8213115409. The cubic root of 42834686 is about 349.8902676410.

The spelling of 42834686 in words is "forty-two million, eight hundred thirty-four thousand, six hundred eighty-six".