1806280224 has 144 divisors (see below), whose sum is σ = 5601282624. Its totient is φ = 499253760.

The previous prime is 1806280207. The next prime is 1806280237. The reversal of 1806280224 is 4220826081.

It is a happy number.

It is a super-2 number, since 2×1806280224² = 6525296495226980352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 644394 + ... + 647190.

It is an arithmetic number, because the mean of its divisors is an integer number (38897796).

Almost surely, 2^1806280224 is an apocalyptic number.

1806280224 is a gapful number since it is divisible by the number (14) 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 1806280224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2800641312).

1806280224 is an abundant number, since it is smaller than the sum of its proper divisors (3795002400).

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

1806280224 is a wasteful number, since it uses less digits than its factorization.

1806280224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2879 (or 2840 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 1806280224 is about 42500.3555749831. The cubic root of 1806280224 is about 1217.8534825549.

The spelling of 1806280224 in words is "one billion, eight hundred six million, two hundred eighty thousand, two hundred twenty-four".