34204638 has 16 divisors (see below), whose sum is σ = 73671696. Its totient is φ = 10524480.

The previous prime is 34204631. The next prime is 34204649. The reversal of 34204638 is 83640243.

It is a super-2 number, since 2×34204638² = 2339914521422088, 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 (34204631) 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, 219183 + ... + 219338.

It is an arithmetic number, because the mean of its divisors is an integer number (4604481).

Almost surely, 2^34204638 is an apocalyptic number.

34204638 is an abundant number, since it is smaller than the sum of its proper divisors (39467058).

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

34204638 is a wasteful number, since it uses less digits than its factorization.

34204638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438539.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 34204638 is about 5848.4731340753. The cubic root of 34204638 is about 324.6098292134.

The spelling of 34204638 in words is "thirty-four million, two hundred four thousand, six hundred thirty-eight".