4491857800 has 24 divisors (see below), whose sum is σ = 10443569850. Its totient is φ = 1796743040.

The previous prime is 4491857737. The next prime is 4491857803. The reversal of 4491857800 is 87581944.

It can be written as a sum of positive squares in 3 ways, for example, as 3038875876 + 1452981924 = 55126^2 + 38118^2 .

It is not an unprimeable number, because it can be changed into a prime (4491857803) 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, 11229445 + ... + 11229844.

Almost surely, 2^4491857800 is an apocalyptic number.

4491857800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4491857800 is an abundant number, since it is smaller than the sum of its proper divisors (5951712050).

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

4491857800 is a wasteful number, since it uses less digits than its factorization.

4491857800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22459305 (or 22459296 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 4491857800 is about 67021.3234724591. The cubic root of 4491857800 is about 1649.9672843222.

The spelling of 4491857800 in words is "four billion, four hundred ninety-one million, eight hundred fifty-seven thousand, eight hundred".