34239019 has 4 divisors (see below), whose sum is σ = 35727696. Its totient is φ = 32750344.

The previous prime is 34239017. The next prime is 34239041. The reversal of 34239019 is 91093243.

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

It is not a de Polignac number, because 34239019 - 2¹ = 34239017 is a prime.

It is a super-2 number, since 2×34239019² = 2344620844164722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34239011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744304 + ... + 744349.

It is an arithmetic number, because the mean of its divisors is an integer number (8931924).

Almost surely, 2^34239019 is an apocalyptic number.

34239019 is a deficient number, since it is larger than the sum of its proper divisors (1488677).

34239019 is a wasteful number, since it uses less digits than its factorization.

34239019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488676.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 34239019 is about 5851.4117100064. The cubic root of 34239019 is about 324.7185539747.

The spelling of 34239019 in words is "thirty-four million, two hundred thirty-nine thousand, nineteen".