3018997800 has 432 divisors, whose sum is σ = 12706178940. Its totient is φ = 636733440.

The previous prime is 3018997789. The next prime is 3018997811. The reversal of 3018997800 is 87998103.

It is an interprime number because it is at equal distance from previous prime (3018997789) and next prime (3018997811).

It can be written as a sum of positive squares in 6 ways, for example, as 205119684 + 2813878116 = 14322^2 + 53046^2 .

It is a super-2 number, since 2×3018997800² = 18228695432809680000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1145284 + ... + 1147916.

Almost surely, 2^3018997800 is an apocalyptic number.

3018997800 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3018997800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6353089470).

3018997800 is an abundant number, since it is smaller than the sum of its proper divisors (9687181140).

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

3018997800 is a wasteful number, since it uses less digits than its factorization.

3018997800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682 (or 2663 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 3018997800 is about 54945.4074513967. The cubic root of 3018997800 is about 1445.2875630487.

The spelling of 3018997800 in words is "three billion, eighteen million, nine hundred ninety-seven thousand, eight hundred".