201327720 has 128 divisors (see below), whose sum is σ = 674403840. Its totient is φ = 47658240.

The previous prime is 201327713. The next prime is 201327751. The reversal of 201327720 is 27723102.

It is a Cunningham number, because it is equal to 14189²-1.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 54987 + ... + 58533.

It is an arithmetic number, because the mean of its divisors is an integer number (5268780).

Almost surely, 2^201327720 is an apocalyptic number.

201327720 is a gapful number since it is divisible by the number (20) 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 201327720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337201920).

201327720 is an abundant number, since it is smaller than the sum of its proper divisors (473076120).

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

201327720 is a wasteful number, since it uses less digits than its factorization.

201327720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615 (or 3611 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 201327720 is about 14188.9999647614. Note that the first 4 decimals coincide. The cubic root of 201327720 is about 586.0947867810.

The spelling of 201327720 in words is "two hundred one million, three hundred twenty-seven thousand, seven hundred twenty".