461988688 has 20 divisors (see below), whose sum is σ = 1022975200. Its totient is φ = 197995104.

The previous prime is 461988547. The next prime is 461988733. The reversal of 461988688 is 886889164.

It is a super-2 number, since 2×461988688² = 426867095679922688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2062338 + ... + 2062561.

It is an arithmetic number, because the mean of its divisors is an integer number (51148760).

Almost surely, 2^461988688 is an apocalyptic number.

It is an amenable number.

461988688 is an abundant number, since it is smaller than the sum of its proper divisors (560986512).

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

461988688 is a wasteful number, since it uses less digits than its factorization.

461988688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4124914 (or 4124908 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 58.

The square root of 461988688 is about 21493.9221176592. The cubic root of 461988688 is about 773.0550957696.

The spelling of 461988688 in words is "four hundred sixty-one million, nine hundred eighty-eight thousand, six hundred eighty-eight".