1806018240 has 224 divisors, whose sum is σ = 6308628480. Its totient is φ = 434958336.

The previous prime is 1806018233. The next prime is 1806018251. The reversal of 1806018240 is 428106081.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1806018198 and 1806018207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 585021 + ... + 588099.

It is an arithmetic number, because the mean of its divisors is an integer number (28163520).

Almost surely, 2^1806018240 is an apocalyptic number.

1806018240 is a gapful number since it is divisible by the number (10) 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 1806018240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3154314240).

1806018240 is an abundant number, since it is smaller than the sum of its proper divisors (4502610240).

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

1806018240 is a wasteful number, since it uses less digits than its factorization.

1806018240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159 (or 3149 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 1806018240 is about 42497.2733242969. The cubic root of 1806018240 is about 1217.7946003008.

The spelling of 1806018240 in words is "one billion, eight hundred six million, eighteen thousand, two hundred forty".