634424334 has 16 divisors (see below), whose sum is σ = 1286720640. Its totient is φ = 208496120.

The previous prime is 634424333. The next prime is 634424347. The reversal of 634424334 is 433424436.

It is a junction number, because it is equal to n+sod(n) for n = 634424295 and 634424304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634424333) 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, 744204 + ... + 745055.

It is an arithmetic number, because the mean of its divisors is an integer number (80420040).

Almost surely, 2^634424334 is an apocalyptic number.

634424334 is an abundant number, since it is smaller than the sum of its proper divisors (652296306).

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

634424334 is a wasteful number, since it uses less digits than its factorization.

634424334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489335.

The product of its digits is 82944, while the sum is 33.

The square root of 634424334 is about 25187.7814425963. The cubic root of 634424334 is about 859.2639880917.

It can be divided in two parts, 63442 and 4334, that added together give a palindrome (67776).

The spelling of 634424334 in words is "six hundred thirty-four million, four hundred twenty-four thousand, three hundred thirty-four".