634238 has 16 divisors (see below), whose sum is σ = 1050624. Its totient is φ = 284760.

The previous prime is 634237. The next prime is 634241. The reversal of 634238 is 832436.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2681 + ... + 2907.

It is an arithmetic number, because the mean of its divisors is an integer number (65664).

2⁶³⁴²³⁸ is an apocalyptic number.

634238 is a deficient number, since it is larger than the sum of its proper divisors (416386).

634238 is a wasteful number, since it uses less digits than its factorization.

634238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367.

The product of its digits is 3456, while the sum is 26.

The square root of 634238 is about 796.3906076794. The cubic root of 634238 is about 85.9179856297.

The spelling of 634238 in words is "six hundred thirty-four thousand, two hundred thirty-eight".