1816313202 has 96 divisors (see below), whose sum is σ = 4517420544. Its totient is φ = 522374400.

The previous prime is 1816313183. The next prime is 1816313203. The reversal of 1816313202 is 2023136181.

It is a happy number.

1816313202 is a `hidden beast` number, since 1 + 8 + 1 + 631 + 3 + 20 + 2 = 666.

1816313202 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1816313203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 297343 + ... + 303389.

It is an arithmetic number, because the mean of its divisors is an integer number (47056464).

Almost surely, 2^1816313202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1816313202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2258710272).

1816313202 is an abundant number, since it is smaller than the sum of its proper divisors (2701107342).

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

1816313202 is a wasteful number, since it uses less digits than its factorization.

1816313202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6144 (or 6141 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1816313202 is about 42618.2261714398. The cubic root of 1816313202 is about 1220.1041750154.

Adding to 1816313202 its reverse (2023136181), we get a palindrome (3839449383).

The spelling of 1816313202 in words is "one billion, eight hundred sixteen million, three hundred thirteen thousand, two hundred two".