1818022130 has 16 divisors (see below), whose sum is σ = 3292519104. Its totient is φ = 722746800.

The previous prime is 1818022099. The next prime is 1818022133. The reversal of 1818022130 is 312208181.

It is a self number, because there is not a number n which added to its sum of digits gives 1818022130.

It is not an unprimeable number, because it can be changed into a prime (1818022133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556046 + ... + 559305.

It is an arithmetic number, because the mean of its divisors is an integer number (205782444).

Almost surely, 2^1818022130 is an apocalyptic number.

1818022130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1818022130 is a deficient number, since it is larger than the sum of its proper divisors (1474496974).

1818022130 is a wasteful number, since it uses less digits than its factorization.

1818022130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115521.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 1818022130 is about 42638.2707200937. The cubic root of 1818022130 is about 1220.4867112056.

The spelling of 1818022130 in words is "one billion, eight hundred eighteen million, twenty-two thousand, one hundred thirty".