1813817022 has 32 divisors (see below), whose sum is σ = 3667921920. Its totient is φ = 597907680.

The previous prime is 1813817003. The next prime is 1813817029. The reversal of 1813817022 is 2207183181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813817029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 579979 + ... + 583097.

It is an arithmetic number, because the mean of its divisors is an integer number (114622560).

Almost surely, 2^1813817022 is an apocalyptic number.

1813817022 is an abundant number, since it is smaller than the sum of its proper divisors (1854104898).

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

1813817022 is a wasteful number, since it uses less digits than its factorization.

1813817022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 1813817022 is about 42588.9307449718. The cubic root of 1813817022 is about 1219.5449843973.

The spelling of 1813817022 in words is "one billion, eight hundred thirteen million, eight hundred seventeen thousand, twenty-two".