201662244 has 144 divisors (see below), whose sum is σ = 620524800. Its totient is φ = 56452032.

The previous prime is 201662243. The next prime is 201662249. The reversal of 201662244 is 442266102.

201662244 is a `hidden beast` number, since 20 + 16 + 622 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (201662243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 280117 + ... + 280835.

It is an arithmetic number, because the mean of its divisors is an integer number (4309200).

Almost surely, 2^201662244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201662244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310262400).

201662244 is an abundant number, since it is smaller than the sum of its proper divisors (418862556).

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

201662244 is a wasteful number, since it uses less digits than its factorization.

201662244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 201662244 is about 14200.7832178370. The cubic root of 201662244 is about 586.4192234435.

The spelling of 201662244 in words is "two hundred one million, six hundred sixty-two thousand, two hundred forty-four".