638094 has 8 divisors (see below), whose sum is σ = 1276200. Its totient is φ = 212696.

The previous prime is 638081. The next prime is 638117. The reversal of 638094 is 490836.

It is a sphenic number, since it is the product of 3 distinct primes.

638094 is an admirable number.

It is a congruent number.

It is an unprimeable number.

638094 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 53169 + ... + 53180.

It is an arithmetic number, because the mean of its divisors is an integer number (159525).

2⁶³⁸⁰⁹⁴ is an apocalyptic number.

638094 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

638094 is a wasteful number, since it uses less digits than its factorization.

638094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106354.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 638094 is about 798.8078617540. The cubic root of 638094 is about 86.0917535245.

The spelling of 638094 in words is "six hundred thirty-eight thousand, ninety-four".