461632812 has 12 divisors (see below), whose sum is σ = 1077143256. Its totient is φ = 153877600.

The previous prime is 461632781. The next prime is 461632819. The reversal of 461632812 is 218236164.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (461632819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19234689 + ... + 19234712.

It is an arithmetic number, because the mean of its divisors is an integer number (89761938).

Almost surely, 2^461632812 is an apocalyptic number.

It is an amenable number.

461632812 is an abundant number, since it is smaller than the sum of its proper divisors (615510444).

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

461632812 is a wasteful number, since it uses less digits than its factorization.

461632812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38469408 (or 38469406 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 461632812 is about 21485.6419964589. The cubic root of 461632812 is about 772.8565465891.

Adding to 461632812 its reverse (218236164), we get a palindrome (679868976).

The spelling of 461632812 in words is "four hundred sixty-one million, six hundred thirty-two thousand, eight hundred twelve".