2281451816 has 64 divisors (see below), whose sum is σ = 5286643200. Its totient is φ = 900652032.

The previous prime is 2281451797. The next prime is 2281451819. The reversal of 2281451816 is 6181541822.

It is a self number, because there is not a number n which added to its sum of digits gives 2281451816.

It is not an unprimeable number, because it can be changed into a prime (2281451819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19250 + ... + 70238.

It is an arithmetic number, because the mean of its divisors is an integer number (82603800).

Almost surely, 2^2281451816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2281451816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2643321600).

2281451816 is an abundant number, since it is smaller than the sum of its proper divisors (3005191384).

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

2281451816 is a wasteful number, since it uses less digits than its factorization.

2281451816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51066 (or 51062 counting only the distinct ones).

The product of its digits is 30720, while the sum is 38.

The square root of 2281451816 is about 47764.5455960799. The cubic root of 2281451816 is about 1316.4481756199.

The spelling of 2281451816 in words is "two billion, two hundred eighty-one million, four hundred fifty-one thousand, eight hundred sixteen".