634018 has 32 divisors (see below), whose sum is σ = 1244160. Its totient is φ = 234960.

The previous prime is 634013. The next prime is 634031. The reversal of 634018 is 810436.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 634018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3453 + ... + 3631.

It is an arithmetic number, because the mean of its divisors is an integer number (38880).

2⁶³⁴⁰¹⁸ is an apocalyptic number.

634018 is a deficient number, since it is larger than the sum of its proper divisors (610142).

634018 is a wasteful number, since it uses less digits than its factorization.

634018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 634018 is about 796.2524725236. The cubic root of 634018 is about 85.9080502727.

The spelling of 634018 in words is "six hundred thirty-four thousand, eighteen".