4489637860 has 24 divisors (see below), whose sum is σ = 9521592696. Its totient is φ = 1778073600.

The previous prime is 4489637857. The next prime is 4489637947. The reversal of 4489637860 is 687369844.

It can be written as a sum of positive squares in 4 ways, for example, as 339443776 + 4150194084 = 18424^2 + 64422^2 .

It is a super-2 number, since 2×4489637860² = 40313696227890759200, which contains 22 as substring.

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, 1109277 + ... + 1113316.

It is an arithmetic number, because the mean of its divisors is an integer number (396733029).

Almost surely, 2^4489637860 is an apocalyptic number.

It is an amenable number.

4489637860 is an abundant number, since it is smaller than the sum of its proper divisors (5031954836).

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

4489637860 is a wasteful number, since it uses less digits than its factorization.

4489637860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222703 (or 2222701 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 55.

The square root of 4489637860 is about 67004.7599801686. The cubic root of 4489637860 is about 1649.6954271005.

The spelling of 4489637860 in words is "four billion, four hundred eighty-nine million, six hundred thirty-seven thousand, eight hundred sixty".