2185504224 has 48 divisors (see below), whose sum is σ = 6074420688. Its totient is φ = 685647872.

The previous prime is 2185504193. The next prime is 2185504249. The reversal of 2185504224 is 4224055812.

It is a tau number, because it is divible by the number of its divisors (48).

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, 667947 + ... + 671210.

It is an arithmetic number, because the mean of its divisors is an integer number (126550431).

Almost surely, 2^2185504224 is an apocalyptic number.

2185504224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2185504224 is an abundant number, since it is smaller than the sum of its proper divisors (3888916464).

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

2185504224 is a wasteful number, since it uses less digits than its factorization.

2185504224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339187 (or 1339179 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

The square root of 2185504224 is about 46749.3767231179. The cubic root of 2185504224 is about 1297.7286222894.

The spelling of 2185504224 in words is "two billion, one hundred eighty-five million, five hundred four thousand, two hundred twenty-four".