355638 has 8 divisors (see below), whose sum is σ = 711288. Its totient is φ = 118544.

The previous prime is 355633. The next prime is 355643. The reversal of 355638 is 836553.

It is an interprime number because it is at equal distance from previous prime (355633) and next prime (355643).

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

355638 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355633) by changing a digit.

355638 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, 29631 + ... + 29642.

It is an arithmetic number, because the mean of its divisors is an integer number (88911).

2³⁵⁵⁶³⁸ is an apocalyptic number.

355638 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.

355638 is a wasteful number, since it uses less digits than its factorization.

355638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59278.

The product of its digits is 10800, while the sum is 30.

The square root of 355638 is about 596.3539217612. The cubic root of 355638 is about 70.8493798325.

The spelling of 355638 in words is "three hundred fifty-five thousand, six hundred thirty-eight".