1806298560 has 672 divisors, whose sum is σ = 7371965952. Its totient is φ = 401448960.

The previous prime is 1806298547. The next prime is 1806298561. The reversal of 1806298560 is 658926081.

1806298560 is a `hidden beast` number, since 1 + 80 + 6 + 2 + 9 + 8 + 560 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806298561) by changing a digit.

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, 26959647 + ... + 26959713.

Almost surely, 2^1806298560 is an apocalyptic number.

1806298560 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 1806298560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3685982976).

1806298560 is an abundant number, since it is smaller than the sum of its proper divisors (5565667392).

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

1806298560 is a wasteful number, since it uses less digits than its factorization.

1806298560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1806298560 is about 42500.5712902780. The cubic root of 1806298560 is about 1217.8576034522.

The spelling of 1806298560 in words is "one billion, eight hundred six million, two hundred ninety-eight thousand, five hundred sixty".