634290 has 16 divisors (see below), whose sum is σ = 1522368. Its totient is φ = 169136.

The previous prime is 634279. The next prime is 634301. The reversal of 634290 is 92436.

It is an interprime number because it is at equal distance from previous prime (634279) and next prime (634301).

It is a self number, because there is not a number n which added to its sum of digits gives 634290.

It is an unprimeable number.

634290 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 7 ways as a sum of consecutive naturals, for example, 10542 + ... + 10601.

It is an arithmetic number, because the mean of its divisors is an integer number (95148).

2⁶³⁴²⁹⁰ is an apocalyptic number.

634290 is an abundant number, since it is smaller than the sum of its proper divisors (888078).

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

634290 is a wasteful number, since it uses less digits than its factorization.

634290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21153.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 634290 is about 796.4232543064. The cubic root of 634290 is about 85.9203336511.

The spelling of 634290 in words is "six hundred thirty-four thousand, two hundred ninety".