4664257820 has 24 divisors (see below), whose sum is σ = 9820137600. Its totient is φ = 1860903872.

The previous prime is 4664257781. The next prime is 4664257849. The reversal of 4664257820 is 287524664.

It is a super-2 number, since 2×4664257820² = 43510602022862304800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291980 + ... + 307539.

It is an arithmetic number, because the mean of its divisors is an integer number (409172400).

Almost surely, 2^4664257820 is an apocalyptic number.

It is an amenable number.

4664257820 is an abundant number, since it is smaller than the sum of its proper divisors (5155879780).

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

4664257820 is a wasteful number, since it uses less digits than its factorization.

4664257820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599917 (or 599915 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The square root of 4664257820 is about 68295.3718783345. The cubic root of 4664257820 is about 1670.8117320248.

The spelling of 4664257820 in words is "four billion, six hundred sixty-four million, two hundred fifty-seven thousand, eight hundred twenty".