34638894 has 64 divisors (see below), whose sum is σ = 82555200. Its totient is φ = 10727424.

The previous prime is 34638887. The next prime is 34638913. The reversal of 34638894 is 49883643.

34638894 is a `hidden beast` number, since 3 + 4 + 638 + 8 + 9 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88852 + ... + 89240.

It is an arithmetic number, because the mean of its divisors is an integer number (1289925).

Almost surely, 2^34638894 is an apocalyptic number.

34638894 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 34638894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41277600).

34638894 is an abundant number, since it is smaller than the sum of its proper divisors (47916306).

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

34638894 is a wasteful number, since it uses less digits than its factorization.

34638894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 508 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 34638894 is about 5885.4816285500. The cubic root of 34638894 is about 325.9777858827.

The spelling of 34638894 in words is "thirty-four million, six hundred thirty-eight thousand, eight hundred ninety-four".