634196080 has 80 divisors (see below), whose sum is σ = 1688463360. Its totient is φ = 217011456.

The previous prime is 634196023. The next prime is 634196081. The reversal of 634196080 is 80691436.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634196081) 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, 440001 + ... + 441439.

It is an arithmetic number, because the mean of its divisors is an integer number (21105792).

Almost surely, 2^634196080 is an apocalyptic number.

634196080 is the 12592-nd decagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634196080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (844231680).

634196080 is an abundant number, since it is smaller than the sum of its proper divisors (1054267280).

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

634196080 is a wasteful number, since it uses less digits than its factorization.

634196080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246 (or 2240 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 634196080 is about 25183.2499888319. The cubic root of 634196080 is about 859.1609266979.

The spelling of 634196080 in words is "six hundred thirty-four million, one hundred ninety-six thousand, eighty".