634042544 has 20 divisors (see below), whose sum is σ = 1270818960. Its totient is φ = 306089280.

The previous prime is 634042529. The next prime is 634042571. The reversal of 634042544 is 445240436.

It is a self number, because there is not a number n which added to its sum of digits gives 634042544.

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, 682772 + ... + 683699.

It is an arithmetic number, because the mean of its divisors is an integer number (63540948).

Almost surely, 2^634042544 is an apocalyptic number.

It is an amenable number.

634042544 is an abundant number, since it is smaller than the sum of its proper divisors (636776416).

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

634042544 is a wasteful number, since it uses less digits than its factorization.

634042544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366508 (or 1366502 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

The square root of 634042544 is about 25180.2014289004. The cubic root of 634042544 is about 859.0915881117.

It can be divided in two parts, 6340 and 42544, that added together give a palindrome (48884).

The spelling of 634042544 in words is "six hundred thirty-four million, forty-two thousand, five hundred forty-four".