634045 has 8 divisors (see below), whose sum is σ = 766296. Its totient is φ = 503616.

The previous prime is 634031. The next prime is 634061. The reversal of 634045 is 540436.

It can be written as a sum of positive squares in 4 ways, for example, as 376996 + 257049 = 614^2 + 507^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 634045 - 2⁵ = 634013 is a prime.

It is a Duffinian number.

634045 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499 + ... + 1231.

It is an arithmetic number, because the mean of its divisors is an integer number (95787).

2⁶³⁴⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

634045 is a deficient number, since it is larger than the sum of its proper divisors (132251).

634045 is a wasteful number, since it uses less digits than its factorization.

634045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 634045 is about 796.2694267646. The cubic root of 634045 is about 85.9092697357.

The spelling of 634045 in words is "six hundred thirty-four thousand, forty-five".