634242 has 16 divisors (see below), whose sum is σ = 1449792. Its totient is φ = 181200.

The previous prime is 634241. The next prime is 634247. The reversal of 634242 is 242436.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (634241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7509 + ... + 7592.

It is an arithmetic number, because the mean of its divisors is an integer number (90612).

2⁶³⁴²⁴² is an apocalyptic number.

634242 is an abundant number, since it is smaller than the sum of its proper divisors (815550).

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

634242 is a wasteful number, since it uses less digits than its factorization.

634242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15113.

The product of its digits is 1152, while the sum is 21.

The square root of 634242 is about 796.3931190059. The cubic root of 634242 is about 85.9181662513.

Adding to 634242 its reverse (242436), we get a palindrome (876678).

The spelling of 634242 in words is "six hundred thirty-four thousand, two hundred forty-two".