1818124056 has 384 divisors, whose sum is σ = 6294113280. Its totient is φ = 480370176.

The previous prime is 1818124043. The next prime is 1818124069. The reversal of 1818124056 is 6504218181.

It is an interprime number because it is at equal distance from previous prime (1818124043) and next prime (1818124069).

It is a super-2 number, since 2×1818124056² = 6611150166011782272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1818124056.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 11580330 + ... + 11580486.

It is an arithmetic number, because the mean of its divisors is an integer number (16390920).

Almost surely, 2^1818124056 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 1818124056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3147056640).

1818124056 is an abundant number, since it is smaller than the sum of its proper divisors (4475989224).

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

1818124056 is a wasteful number, since it uses less digits than its factorization.

1818124056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 1818124056 is about 42639.4659441227. The cubic root of 1818124056 is about 1220.5095193262.

The spelling of 1818124056 in words is "one billion, eight hundred eighteen million, one hundred twenty-four thousand, fifty-six".