34639742 has 4 divisors (see below), whose sum is σ = 51959616. Its totient is φ = 17319870.

The previous prime is 34639729. The next prime is 34639751. The reversal of 34639742 is 24793643.

34639742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 34639696 and 34639705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8659934 + ... + 8659937.

It is an arithmetic number, because the mean of its divisors is an integer number (12989904).

Almost surely, 2^34639742 is an apocalyptic number.

34639742 is a deficient number, since it is larger than the sum of its proper divisors (17319874).

34639742 is a wasteful number, since it uses less digits than its factorization.

34639742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17319873.

The product of its digits is 108864, while the sum is 38.

The square root of 34639742 is about 5885.5536697918. The cubic root of 34639742 is about 325.9804459648.

The spelling of 34639742 in words is "thirty-four million, six hundred thirty-nine thousand, seven hundred forty-two".