2811224004 has 12 divisors (see below), whose sum is σ = 6559522704. Its totient is φ = 937074664.

The previous prime is 2811223993. The next prime is 2811224047. The reversal of 2811224004 is 4004221182.

It is a tau number, because it is divible by the number of its divisors (12).

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, 117134322 + ... + 117134345.

It is an arithmetic number, because the mean of its divisors is an integer number (546626892).

Almost surely, 2^2811224004 is an apocalyptic number.

It is an amenable number.

2811224004 is an abundant number, since it is smaller than the sum of its proper divisors (3748298700).

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

2811224004 is a wasteful number, since it uses less digits than its factorization.

2811224004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234268674 (or 234268672 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 2811224004 is about 53020.9770185348. The cubic root of 2811224004 is about 1411.3405429048.

Adding to 2811224004 its reverse (4004221182), we get a palindrome (6815445186).

The spelling of 2811224004 in words is "two billion, eight hundred eleven million, two hundred twenty-four thousand, four".