34142639 has 8 divisors (see below), whose sum is σ = 36144000. Its totient is φ = 32161752.

The previous prime is 34142617. The next prime is 34142659. The reversal of 34142639 is 93624143.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34142639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34142609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1619 + ... + 8420.

It is an arithmetic number, because the mean of its divisors is an integer number (4518000).

Almost surely, 2^34142639 is an apocalyptic number.

34142639 is a deficient number, since it is larger than the sum of its proper divisors (2001361).

34142639 is a wasteful number, since it uses less digits than its factorization.

34142639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10237.

The product of its digits is 15552, while the sum is 32.

The square root of 34142639 is about 5843.1702867536. The cubic root of 34142639 is about 324.4135823690.

The spelling of 34142639 in words is "thirty-four million, one hundred forty-two thousand, six hundred thirty-nine".