34000638 has 32 divisors (see below), whose sum is σ = 79038720. Its totient is φ = 9549120.

The previous prime is 34000621. The next prime is 34000639. The reversal of 34000638 is 83600043.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34000639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4383 + ... + 9338.

It is an arithmetic number, because the mean of its divisors is an integer number (2469960).

Almost surely, 2^34000638 is an apocalyptic number.

34000638 is an abundant number, since it is smaller than the sum of its proper divisors (45038082).

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

34000638 is a wasteful number, since it uses less digits than its factorization.

34000638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13792.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 34000638 is about 5831.0066026373. The cubic root of 34000638 is about 323.9632064605.

The spelling of 34000638 in words is "thirty-four million, six hundred thirty-eight", and thus it is an aban number.