201267620 has 12 divisors (see below), whose sum is σ = 422662044. Its totient is φ = 80507040.

The previous prime is 201267601. The next prime is 201267623. The reversal of 201267620 is 26762102.

It can be written as a sum of positive squares in 2 ways, for example, as 145347136 + 55920484 = 12056^2 + 7478^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201267620.

It is not an unprimeable number, because it can be changed into a prime (201267623) 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 3 ways as a sum of consecutive naturals, for example, 5031671 + ... + 5031710.

It is an arithmetic number, because the mean of its divisors is an integer number (35221837).

Almost surely, 2^201267620 is an apocalyptic number.

201267620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201267620 is an abundant number, since it is smaller than the sum of its proper divisors (221394424).

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

201267620 is a wasteful number, since it uses less digits than its factorization.

201267620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10063390 (or 10063388 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 201267620 is about 14186.8819689176. The cubic root of 201267620 is about 586.0364609788.

The spelling of 201267620 in words is "two hundred one million, two hundred sixty-seven thousand, six hundred twenty".