634344 has 16 divisors (see below), whose sum is σ = 1585920. Its totient is φ = 211440.

The previous prime is 634343. The next prime is 634367. The reversal of 634344 is 443436.

It is a super-3 number, since 3×634344³ = 765765443123338752, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 26431 = 634344 / (6 + 3 + 4 + 3 + 4 + 4).

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 6⁴ + 3⁹ + 3¹² + 4 + 4⁷ + 4⁸ .

It is not an unprimeable number, because it can be changed into a prime (634343) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13192 + ... + 13239.

It is an arithmetic number, because the mean of its divisors is an integer number (99120).

2⁶³⁴³⁴⁴ is an apocalyptic number.

It is an amenable number.

634344 is an abundant number, since it is smaller than the sum of its proper divisors (951576).

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

634344 is a wasteful number, since it uses less digits than its factorization.

634344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26440 (or 26436 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

The square root of 634344 is about 796.4571551565. The cubic root of 634344 is about 85.9227718451.

The spelling of 634344 in words is "six hundred thirty-four thousand, three hundred forty-four".