1806342720 has 896 divisors, whose sum is σ = 7865303040. Its totient is φ = 340623360.

The previous prime is 1806342709. The next prime is 1806342721. The reversal of 1806342720 is 272436081.

It is not an unprimeable number, because it can be changed into a prime (1806342721) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 58269105 + ... + 58269135.

It is an arithmetic number, because the mean of its divisors is an integer number (8778240).

Almost surely, 2^1806342720 is an apocalyptic number.

1806342720 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 1806342720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3932651520).

1806342720 is an abundant number, since it is smaller than the sum of its proper divisors (6058960320).

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

1806342720 is a wasteful number, since it uses less digits than its factorization.

1806342720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 1806342720 is about 42501.0908095310. The cubic root of 1806342720 is about 1217.8675280119.

The spelling of 1806342720 in words is "one billion, eight hundred six million, three hundred forty-two thousand, seven hundred twenty".