634013130 has 64 divisors (see below), whose sum is σ = 1654732800. Its totient is φ = 154819584.

The previous prime is 634013123. The next prime is 634013137. The reversal of 634013130 is 31310436.

It is an interprime number because it is at equal distance from previous prime (634013123) and next prime (634013137).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 634013097 and 634013106.

It is not an unprimeable number, because it can be changed into a prime (634013137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2071 + ... + 35669.

It is an arithmetic number, because the mean of its divisors is an integer number (25855200).

Almost surely, 2^634013130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634013130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (827366400).

634013130 is an abundant number, since it is smaller than the sum of its proper divisors (1020719670).

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

634013130 is a wasteful number, since it uses less digits than its factorization.

634013130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33663.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 634013130 is about 25179.6173521362. The cubic root of 634013130 is about 859.0783031405.

Adding to 634013130 its reverse (31310436), we get a palindrome (665323566).

The spelling of 634013130 in words is "six hundred thirty-four million, thirteen thousand, one hundred thirty".