634942 has 48 divisors (see below), whose sum is σ = 1313280. Its totient is φ = 226800.

The previous prime is 634939. The next prime is 634943. The reversal of 634942 is 249436.

634942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 634942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20467 + ... + 20497.

It is an arithmetic number, because the mean of its divisors is an integer number (27360).

2⁶³⁴⁹⁴² is an apocalyptic number.

634942 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

634942 is an abundant number, since it is smaller than the sum of its proper divisors (678338).

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

634942 is a wasteful number, since it uses less digits than its factorization.

634942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 70 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 634942 is about 796.8324792577. The cubic root of 634942 is about 85.9497633408.

It can be divided in two parts, 63 and 4942, that added together give a palindrome (5005).

The spelling of 634942 in words is "six hundred thirty-four thousand, nine hundred forty-two".