201072330 has 48 divisors (see below), whose sum is σ = 524351880. Its totient is φ = 53458944.

The previous prime is 201072299. The next prime is 201072331. The reversal of 201072330 is 33270102.

It can be written as a sum of positive squares in 4 ways, for example, as 174477681 + 26594649 = 13209^2 + 5157^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201072331) 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 23 ways as a sum of consecutive naturals, for example, 28606 + ... + 34934.

Almost surely, 2^201072330 is an apocalyptic number.

201072330 is an abundant number, since it is smaller than the sum of its proper divisors (323279550).

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

201072330 is a wasteful number, since it uses less digits than its factorization.

201072330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6695 (or 6692 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 201072330 is about 14179.9975317346. The cubic root of 201072330 is about 585.8468558875.

The spelling of 201072330 in words is "two hundred one million, seventy-two thousand, three hundred thirty".