4631868 has 18 divisors (see below), whose sum is σ = 11708424. Its totient is φ = 1543944.

The previous prime is 4631867. The next prime is 4631881. The reversal of 4631868 is 8681364.

It is a happy number.

4631868 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 128663 = 4631868 / (4 + 6 + 3 + 1 + 8 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4631863) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64296 + ... + 64367.

It is an arithmetic number, because the mean of its divisors is an integer number (650468).

Almost surely, 2^4631868 is an apocalyptic number.

It is an amenable number.

4631868 is an abundant number, since it is smaller than the sum of its proper divisors (7076556).

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

4631868 is a wasteful number, since it uses less digits than its factorization.

4631868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128673 (or 128668 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 4631868 is about 2152.1775019733. The cubic root of 4631868 is about 166.6935227834.

The spelling of 4631868 in words is "four million, six hundred thirty-one thousand, eight hundred sixty-eight".