4664044640 has 24 divisors (see below), whose sum is σ = 11018805840. Its totient is φ = 1865617792.

The previous prime is 4664044633. The next prime is 4664044681. The reversal of 4664044640 is 464404664.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4664044594 and 4664044603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14574980 + ... + 14575299.

It is an arithmetic number, because the mean of its divisors is an integer number (459116910).

Almost surely, 2^4664044640 is an apocalyptic number.

4664044640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4664044640 is an abundant number, since it is smaller than the sum of its proper divisors (6354761200).

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

4664044640 is a wasteful number, since it uses less digits than its factorization.

4664044640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29150294 (or 29150286 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The square root of 4664044640 is about 68293.8111398097. The cubic root of 4664044640 is about 1670.7862768087.

The spelling of 4664044640 in words is "four billion, six hundred sixty-four million, forty-four thousand, six hundred forty".