201667072 has 40 divisors (see below), whose sum is σ = 404567856. Its totient is φ = 100426752.

The previous prime is 201667061. The next prime is 201667079. The reversal of 201667072 is 270766102.

It is not an unprimeable number, because it can be changed into a prime (201667079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156543 + ... + 157825.

Almost surely, 2^201667072 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 201667072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202283928).

201667072 is an abundant number, since it is smaller than the sum of its proper divisors (202900784).

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

201667072 is an equidigital number, since it uses as much as digits as its factorization.

201667072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1592 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 201667072 is about 14200.9532074435. The cubic root of 201667072 is about 586.4239032311.

The spelling of 201667072 in words is "two hundred one million, six hundred sixty-seven thousand, seventy-two".