635042 has 8 divisors (see below), whose sum is σ = 985500. Its totient is φ = 306544.

The previous prime is 635039. The next prime is 635051. The reversal of 635042 is 240536.

It can be written as a sum of positive squares in 2 ways, for example, as 591361 + 43681 = 769^2 + 209^2 .

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

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5417 + ... + 5532.

2⁶³⁵⁰⁴² is an apocalyptic number.

635042 is a deficient number, since it is larger than the sum of its proper divisors (350458).

635042 is a wasteful number, since it uses less digits than its factorization.

635042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10980.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 635042 is about 796.8952252335. The cubic root of 635042 is about 85.9542753147.

Adding to 635042 its reverse (240536), we get a palindrome (875578).

The spelling of 635042 in words is "six hundred thirty-five thousand, forty-two".