2264781816 has 64 divisors (see below), whose sum is σ = 6862982400. Its totient is φ = 686296800.

The previous prime is 2264781811. The next prime is 2264781823. The reversal of 2264781816 is 6181874622.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2264781811) 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, 474220 + ... + 478971.

It is an arithmetic number, because the mean of its divisors is an integer number (107234100).

Almost surely, 2^2264781816 is an apocalyptic number.

It is an amenable number.

2264781816 is an abundant number, since it is smaller than the sum of its proper divisors (4598200584).

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

2264781816 is a wasteful number, since it uses less digits than its factorization.

2264781816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953217 (or 953207 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 2264781816 is about 47589.7238487470. The cubic root of 2264781816 is about 1313.2340148954.

The spelling of 2264781816 in words is "two billion, two hundred sixty-four million, seven hundred eighty-one thousand, eight hundred sixteen".