634340460 has 192 divisors, whose sum is σ = 2102123520. Its totient is φ = 141419520.

The previous prime is 634340453. The next prime is 634340471. The reversal of 634340460 is 64043436.

634340460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 339930 + ... + 341790.

It is an arithmetic number, because the mean of its divisors is an integer number (10948560).

Almost surely, 2^634340460 is an apocalyptic number.

634340460 is a gapful number since it is divisible by the number (60) 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 634340460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1051061760).

634340460 is an abundant number, since it is smaller than the sum of its proper divisors (1467783060).

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

634340460 is a wasteful number, since it uses less digits than its factorization.

634340460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928 (or 1926 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 634340460 is about 25186.1164136117. The cubic root of 634340460 is about 859.2261201222.

Adding to 634340460 its reverse (64043436), we get a palindrome (698383896).

The spelling of 634340460 in words is "six hundred thirty-four million, three hundred forty thousand, four hundred sixty".