34239438 has 48 divisors (see below), whose sum is σ = 78414336. Its totient is φ = 10780560.

The previous prime is 34239437. The next prime is 34239449. The reversal of 34239438 is 83493243.

It is a happy number.

34239438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×34239438² = 2344678229111688, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34239437) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 23281 + ... + 24707.

It is an arithmetic number, because the mean of its divisors is an integer number (1633632).

Almost surely, 2^34239438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34239438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39207168).

34239438 is an abundant number, since it is smaller than the sum of its proper divisors (44174898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34239438 is a wasteful number, since it uses less digits than its factorization.

34239438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509 (or 1506 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 34239438 is about 5851.4475132227. The cubic root of 34239438 is about 324.7198785504.

The spelling of 34239438 in words is "thirty-four million, two hundred thirty-nine thousand, four hundred thirty-eight".