34139538 has 24 divisors (see below), whose sum is σ = 74735388. Its totient is φ = 11261952.

The previous prime is 34139537. The next prime is 34139543. The reversal of 34139538 is 83593143.

It can be written as a sum of positive squares in 2 ways, for example, as 33212169 + 927369 = 5763^2 + 963^2 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34139537) 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 11 ways as a sum of consecutive naturals, for example, 8031 + ... + 11522.

Almost surely, 2^34139538 is an apocalyptic number.

34139538 is an abundant number, since it is smaller than the sum of its proper divisors (40595850).

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

34139538 is a wasteful number, since it uses less digits than its factorization.

34139538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19658 (or 19655 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 34139538 is about 5842.9049282014. The cubic root of 34139538 is about 324.4037604668.

The spelling of 34139538 in words is "thirty-four million, one hundred thirty-nine thousand, five hundred thirty-eight".