634508544 has 144 divisors (see below), whose sum is σ = 1866678912. Its totient is φ = 190316544.

The previous prime is 634508533. The next prime is 634508549. The reversal of 634508544 is 445805436.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634508549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299232 + ... + 301344.

It is an arithmetic number, because the mean of its divisors is an integer number (12963048).

Almost surely, 2^634508544 is an apocalyptic number.

634508544 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634508544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (933339456).

634508544 is an abundant number, since it is smaller than the sum of its proper divisors (1232170368).

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

634508544 is a wasteful number, since it uses less digits than its factorization.

634508544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172 (or 2158 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The square root of 634508544 is about 25189.4530309810. The cubic root of 634508544 is about 859.3020044031.

The spelling of 634508544 in words is "six hundred thirty-four million, five hundred eight thousand, five hundred forty-four".